HardWeb Design

Mini Rhythm Game Snippet

Create a super simple, playable rhythm game.

The Prompt

Create the HTML, CSS, and JavaScript for a playable browser rhythm game snippet. Get creative with the theme, mechanics, and visual style! Keep the design clean and the implementation contained within a single HTML file.

How the models did

Andromeda AlphaMini Rhythm Game Snippet

Andromeda Alpha

Oct 2025·Mini Rhythm Game Snippet

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Aurora AlphaMini Rhythm Game Snippet

Aurora Alpha

Feb 2026·Mini Rhythm Game Snippet

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Bert-Nebulon AlphaMini Rhythm Game Snippet

Bert-Nebulon Alpha

Nov 2025·Mini Rhythm Game Snippet

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Claude 3 HaikuMini Rhythm Game Snippet

Claude 3 Haiku

Mar 2026·Mini Rhythm Game Snippet

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Claude 3 SonnetMini Rhythm Game Snippet

Claude 3 Sonnet

Jul 2025·Mini Rhythm Game Snippet

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Claude Sonnet 3.6 (2022-10-22)Mini Rhythm Game Snippet

Claude Sonnet 3.6 (2022-10-22)

Mar 2026·Mini Rhythm Game Snippet

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Claude 3.7 SonnetMini Rhythm Game Snippet

Claude 3.7 Sonnet

Apr 2025·Mini Rhythm Game Snippet

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Claude 3.7 Thinking SonnetMini Rhythm Game Snippet

Claude 3.7 Thinking Sonnet

Mar 2026·Mini Rhythm Game Snippet

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Claude Haiku 4.5Mini Rhythm Game Snippet

Claude Haiku 4.5

Oct 2025·Mini Rhythm Game Snippet

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Claude Opus 4Mini Rhythm Game Snippet

Claude Opus 4

May 2025·Mini Rhythm Game Snippet

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Claude Opus 4.1Mini Rhythm Game Snippet

Claude Opus 4.1

Aug 2025·Mini Rhythm Game Snippet

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Claude Opus 4.5Mini Rhythm Game Snippet

Claude Opus 4.5

Nov 2025·Mini Rhythm Game Snippet

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Claude Opus 4.6Mini Rhythm Game Snippet

Claude Opus 4.6

Feb 2026·Mini Rhythm Game Snippet

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Claude Sonnet 4Mini Rhythm Game Snippet

Claude Sonnet 4

May 2025·Mini Rhythm Game Snippet

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Claude Sonnet 4.6Mini Rhythm Game Snippet

Claude Sonnet 4.6

Feb 2026·Mini Rhythm Game Snippet

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Cypher Alpha (free)Mini Rhythm Game Snippet

Cypher Alpha (free)

Jul 2025·Mini Rhythm Game Snippet

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DeepSeek V3.1Mini Rhythm Game Snippet

DeepSeek V3.1

Aug 2025·Mini Rhythm Game Snippet

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DeepSeek R1Mini Rhythm Game Snippet

DeepSeek R1

Mar 2026·Mini Rhythm Game Snippet

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DeepSeek R1 0528Mini Rhythm Game Snippet

DeepSeek R1 0528

Mar 2026·Mini Rhythm Game Snippet

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DeepSeek V3 (March 2024)Mini Rhythm Game Snippet

DeepSeek V3 (March 2024)

Mar 2026·Mini Rhythm Game Snippet

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DeepSeek V3.2Mini Rhythm Game Snippet

DeepSeek V3.2

Dec 2025·Mini Rhythm Game Snippet

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DeepSeek V3.2 ExpMini Rhythm Game Snippet

DeepSeek V3.2 Exp

Mar 2026·Mini Rhythm Game Snippet

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DeepSeek V3.2 SpecialeMini Rhythm Game Snippet

DeepSeek V3.2 Speciale

Dec 2025·Mini Rhythm Game Snippet

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Mistral: Devstral 2 2512Mini Rhythm Game Snippet

Mistral: Devstral 2 2512

Dec 2025·Mini Rhythm Game Snippet

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Mistral Devstral MediumMini Rhythm Game Snippet

Mistral Devstral Medium

Jul 2025·Mini Rhythm Game Snippet

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Mistral Devstral Small 1.1Mini Rhythm Game Snippet

Mistral Devstral Small 1.1

Jul 2025·Mini Rhythm Game Snippet

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Gemini 1.5 ProMini Rhythm Game Snippet

Gemini 1.5 Pro

Apr 2025·Mini Rhythm Game Snippet

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Google: Gemini 2.5 Flash Lite Preview 09-2025Mini Rhythm Game Snippet

Google: Gemini 2.5 Flash Lite Preview 09-2025

Sep 2025·Mini Rhythm Game Snippet

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Google: Gemini 2.5 Flash Preview 09-2025Mini Rhythm Game Snippet

Google: Gemini 2.5 Flash Preview 09-2025

Sep 2025·Mini Rhythm Game Snippet

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Gemini 2.5 Pro ExperimentalMini Rhythm Game Snippet

Gemini 2.5 Pro Experimental

Apr 2025·Mini Rhythm Game Snippet

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Gemini 3 Flash PreviewMini Rhythm Game Snippet

Gemini 3 Flash Preview

Dec 2025·Mini Rhythm Game Snippet

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Gemini 3 Pro PreviewMini Rhythm Game Snippet

Gemini 3 Pro Preview

Nov 2025·Mini Rhythm Game Snippet

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Google: Gemini 3.1 Flash Lite PreviewMini Rhythm Game Snippet

Google: Gemini 3.1 Flash Lite Preview

Mar 2026·Mini Rhythm Game Snippet

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Gemini 3.1 Pro PreviewMini Rhythm Game Snippet

Gemini 3.1 Pro Preview

Feb 2026·Mini Rhythm Game Snippet

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Gemma 3 12BMini Rhythm Game Snippet

Gemma 3 12B

Jul 2025·Mini Rhythm Game Snippet

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Gemma 3 27BMini Rhythm Game Snippet

Gemma 3 27B

Jul 2025·Mini Rhythm Game Snippet

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Google: Gemma 3n 2BMini Rhythm Game Snippet

Google: Gemma 3n 2B

Jul 2025·Mini Rhythm Game Snippet

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Gemma 3n 4BMini Rhythm Game Snippet

Gemma 3n 4B

Mar 2026·Mini Rhythm Game Snippet

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Google: Gemma 4 26B A4BMini Rhythm Game Snippet

Google: Gemma 4 26B A4B

Apr 2026·Mini Rhythm Game Snippet

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Google: Gemma 4 31BMini Rhythm Game Snippet

Google: Gemma 4 31B

Apr 2026·Mini Rhythm Game Snippet

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Z.AI: GLM 4 32BMini Rhythm Game Snippet

Z.AI: GLM 4 32B

Jul 2025·Mini Rhythm Game Snippet

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Z.AI: GLM 4.5Mini Rhythm Game Snippet

Z.AI: GLM 4.5

Jul 2025·Mini Rhythm Game Snippet

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Z.AI: GLM 4.5 AirMini Rhythm Game Snippet

Z.AI: GLM 4.5 Air

Jul 2025·Mini Rhythm Game Snippet

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Z.AI: GLM 4.6Mini Rhythm Game Snippet

Z.AI: GLM 4.6

Oct 2025·Mini Rhythm Game Snippet

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Z.AI: GLM 4.7Mini Rhythm Game Snippet

Z.AI: GLM 4.7

Dec 2025·Mini Rhythm Game Snippet

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GLM 4.7 FlashMini Rhythm Game Snippet

GLM 4.7 Flash

Jan 2026·Mini Rhythm Game Snippet

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Z.ai: GLM 5Mini Rhythm Game Snippet

Z.ai: GLM 5

Feb 2026·Mini Rhythm Game Snippet

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GLM 5 TurboMini Rhythm Game Snippet

GLM 5 Turbo

Mar 2026·Mini Rhythm Game Snippet

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GPT-4.1 MiniMini Rhythm Game Snippet

GPT-4.1 Mini

Mar 2026·Mini Rhythm Game Snippet

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GPT-4.5Neon Glow Rhythm Party

GPT-4.5

Jul 2025·Neon Glow Rhythm Party

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GPT-4o (Omni)Mini Rhythm Game Snippet

GPT-4o (Omni)

Apr 2025·Mini Rhythm Game Snippet

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GPT-5Mini Rhythm Game Snippet

GPT-5

May 2025·Mini Rhythm Game Snippet

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GPT-5 CodexMini Rhythm Game Snippet

GPT-5 Codex

Sep 2025·Mini Rhythm Game Snippet

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GPT-5 MiniMini Rhythm Game Snippet

GPT-5 Mini

Aug 2025·Mini Rhythm Game Snippet

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GPT-5 NanoMini Rhythm Game Snippet

GPT-5 Nano

Nothing here. The model returned empty. We stared at it for a while.

Aug 2025·Mini Rhythm Game Snippet

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GPT-5.1Mini Rhythm Game Snippet

GPT-5.1

Nov 2025·Mini Rhythm Game Snippet

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GPT-5.1 ChatMini Rhythm Game Snippet

GPT-5.1 Chat

Nov 2025·Mini Rhythm Game Snippet

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GPT-5.1-CodexMini Rhythm Game Snippet

GPT-5.1-Codex

Nov 2025·Mini Rhythm Game Snippet

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GPT-5.1 Codex MaxMini Rhythm Game Snippet

GPT-5.1 Codex Max

Dec 2025·Mini Rhythm Game Snippet

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GPT-5.1-Codex-MiniMini Rhythm Game Snippet

GPT-5.1-Codex-Mini

Nov 2025·Mini Rhythm Game Snippet

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GPT-5.2Mini Rhythm Game Snippet

GPT-5.2

Dec 2025·Mini Rhythm Game Snippet

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GPT-5.2 ChatMini Rhythm Game Snippet

GPT-5.2 Chat

Dec 2025·Mini Rhythm Game Snippet

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GPT-5.2 ProMini Rhythm Game Snippet

GPT-5.2 Pro

Dec 2025·Mini Rhythm Game Snippet

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GPT-5.3 ChatMini Rhythm Game Snippet

GPT-5.3 Chat

Mar 2026·Mini Rhythm Game Snippet

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GPT-5.3-CodexMini Rhythm Game Snippet

GPT-5.3-Codex

Feb 2026·Mini Rhythm Game Snippet

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GPT-5.4Mini Rhythm Game Snippet

GPT-5.4

Mar 2026·Mini Rhythm Game Snippet

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GPT-5.4 MiniMini Rhythm Game Snippet

GPT-5.4 Mini

Mar 2026·Mini Rhythm Game Snippet

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GPT-5.4 NanoMini Rhythm Game Snippet

GPT-5.4 Nano

Mar 2026·Mini Rhythm Game Snippet

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GPT OSS 120BMini Rhythm Game Snippet

GPT OSS 120B

Aug 2025·Mini Rhythm Game Snippet

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GPT OSS 20BMini Rhythm Game Snippet

GPT OSS 20B

Aug 2025·Mini Rhythm Game Snippet

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Grok 3Mini Rhythm Game Snippet

Grok 3

Mar 2026·Mini Rhythm Game Snippet

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Grok 3 BetaMini Rhythm Game Snippet

Grok 3 Beta

Mar 2026·Mini Rhythm Game Snippet

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xAI: Grok 4Mini Rhythm Game Snippet

xAI: Grok 4

Jul 2025·Mini Rhythm Game Snippet

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xAI: Grok 4 Fast (free)Mini Rhythm Game Snippet

xAI: Grok 4 Fast (free)

Sep 2025·Mini Rhythm Game Snippet

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Grok 4.1 FastMini Rhythm Game Snippet

Grok 4.1 Fast

Nov 2025·Mini Rhythm Game Snippet

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Grok 4.20 BetaMini Rhythm Game Snippet

Grok 4.20 Beta

Mar 2026·Mini Rhythm Game Snippet

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Grok 4.20 Multi-Agent BetaMini Rhythm Game Snippet

Grok 4.20 Multi-Agent Beta

Mar 2026·Mini Rhythm Game Snippet

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Grok Code Fast 1Mini Rhythm Game Snippet

Grok Code Fast 1

Aug 2025·Mini Rhythm Game Snippet

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Horizon AlphaMini Rhythm Game Snippet

Horizon Alpha

Jul 2025·Mini Rhythm Game Snippet

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Horizon BetaMini Rhythm Game Snippet

Horizon Beta

Aug 2025·Mini Rhythm Game Snippet

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Hunter AlphaMini Rhythm Game Snippet

Hunter Alpha

Mar 2026·Mini Rhythm Game Snippet

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INTELLECT-3Mini Rhythm Game Snippet

INTELLECT-3

Nov 2025·Mini Rhythm Game Snippet

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MoonshotAI: Kimi K2 0905Mini Rhythm Game Snippet

MoonshotAI: Kimi K2 0905

Sep 2025·Mini Rhythm Game Snippet

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Kimi K2 ThinkingMini Rhythm Game Snippet

Kimi K2 Thinking

We can't display this one. It's not us. Well... it might be us.

The model was asked for a web page. It produced something else. We're not going to define what.

View raw output

```html
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Cyber Beat - Rhythm Game</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Arial', sans-serif;
            background: linear-gradient(135deg, #1e1e2e 0%, #2d1b69 100%);
            color: #fff;
            overflow: hidden;
            height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        #gameContainer {
            width: 900px;
            height: 600px;
            background: rgba(0, 0, 0, 0.8);
            border-radius: 20px;
            box-shadow: 0 0 50px rgba(0, 255, 255, 0.5);
            position: relative;
            overflow: hidden;
        }

        #gameArea {
            width: 100%;
            height: 450px;
            position: relative;
            background: linear-gradient(to bottom, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.7) 100%);
        }

        .lane {
            width: 25%;
            height: 100%;
            position: absolute;
            border-left: 1px solid rgba(255, 255, 255, 0.1);
            border-right: 1px solid rgba(255, 255, 255, 0.1);
        }

        .lane:nth-child(1) { left: 0; }
        .lane:nth-child(2) { left: 25%; }
        .lane:nth-child(3) { left: 50%; }
        .lane:nth-child(4) { left: 75%; }

        .hitZone {
            position: absolute;
            bottom: 50px;
            width: 100%;
            height: 80px;
            background: linear-gradient(to top, rgba(0, 255, 255, 0.3) 0%, transparent 100%);
            border-top: 3px solid #00ffff;
            border-bottom: 3px solid #00ffff;
        }

        .note {
            position: absolute;
            width: 60%;
            height: 20px;
            left: 20%;
            background: linear-gradient(135deg, #ff00ff 0%, #00ffff 100%);
            border-radius: 10px;
            box-shadow: 0 0 20px rgba(255, 0, 255, 0.8);
            transition: transform 0.1s;
        }

        .note.perfect {
            box-shadow: 0 0 30px rgba(0, 255, 0, 1);
            transform: scale(1.2);
        }

        .note.good {
            box-shadow: 0 0 30px rgba(255, 255, 0, 1);
            transform: scale(1.1);
        }

        #ui {
            position: absolute;
            top: 20px;
            left: 20px;
            right: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        #score {
            font-size: 24px;
            font-weight: bold;
            text-shadow: 0 0 10px rgba(0, 255, 255, 0.8);
        }

        #combo {
            font-size: 20px;
            color: #ff00ff;
            text-shadow: 0 0 10px rgba(255, 0, 255, 0.8);
        }

        #startScreen {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.95);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            z-index: 100;
        }

        #startScreen h1 {
            font-size: 48px;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #ff00ff 0%, #00ffff 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        #startButton {
            padding: 15px 40px;
            font-size: 24px;
            background: linear-gradient(135deg, #ff00ff 0%, #00ffff 100%);
            border: none;
            border-radius: 50px;
            color: #fff;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
        }

        #startButton:hover {
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(255, 0, 255, 0.8);
        }

        #controls {
            margin-top: 30px;
            text-align: center;
            opacity: 0.7;
        }

        .key {
            display: inline-block;
            padding: 10px 15px;
            margin: 0 5px;
            background: rgba(255, 255, 255, 0.1);
            border: 2px solid #00ffff;
            border-radius: 5px;
            font-weight: bold;
        }

        .feedback {
            position: absolute;
            bottom: 150px;
            width: 100%;
            text-align: center;
            font-size: 36px;
            font-weight: bold;
            pointer-events: none;
            opacity: 0;
            transition: opacity 0.3s;
        }

        .feedback.show {
            opacity: 1;
        }

        .feedback.perfect {
            color: #00ff00;
            text-shadow: 0 0 20px rgba(0, 255, 0, 0.8);
        }

        .feedback.good {
            color: #ffff00;
            text-shadow: 0 0 20px rgba(255, 255, 0, 0.8);
        }

        .feedback.miss {
            color: #ff0000;
            text-shadow: 0 0 20px rgba(255, 0, 0, 0.8);
        }

        #gameOver {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.95);
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            z-index: 100;
        }

        #gameOver h2 {
            font-size: 48px;
            margin-bottom: 20px;
            color: #ff00ff;
        }

        #finalScore {
            font-size: 32px;
            margin-bottom: 30px;
        }

        #restartButton {
            padding: 15px 40px;
            font-size: 24px;
            background: linear-gradient(135deg, #ff00ff 0%, #00ffff 100%);
            border: none;
            border-radius: 50px;
            color: #fff;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
        }

        #restartButton:hover {
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(255, 0, 255, 0.8);
        }
    </style>
</head>
<body>
    <div id="gameContainer">
        <div id="startScreen">
            <h1>CYBER BEAT</h1>
            <button id="startButton">START GAME</button>
            <div id="controls">
                <p>Use keys to hit the notes:</p>
                <div style="margin-top: 10px;">
                    <span class="key">D</span>
                    <span class="key">F</span>
                    <span class="key">J</span>
                    <span class="key">K</span>
                </div>
            </div>
        </div>

        <div id="gameOver">
            <h2>GAME OVER</h2>
            <div id="finalScore">Final Score: 0</div>
            <button id="restartButton">PLAY AGAIN</button>
        </div>

        <div id="ui">
            <div id="score">Score: 0</div>
            <div id="combo">Combo: 0</div>
        </div>

        <div id="gameArea">
            <div class="lane">
                <div class="hitZone"></div>
            </div>
            <div class="lane">
                <div class="hitZone"></div>
            </div>
            <div class="lane">
                <div class="hitZone"></div>
            </div>
            <div class="lane">
                <div class="hitZone"></div>
            </div>
        </div>

        <div class="feedback" id="feedback"></div>
    </div>

    <script>
        class RhythmGame {
            constructor() {
                this.score

Nov 2025·Mini Rhythm Game Snippet

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Kimi K2.5Mini Rhythm Game Snippet

Kimi K2.5

Jan 2026·Mini Rhythm Game Snippet

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Kimi Linear 48B A3B InstructMini Rhythm Game Snippet

Kimi Linear 48B A3B Instruct

Nov 2025·Mini Rhythm Game Snippet

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Llama 3.1 70B (Instruct)Mini Rhythm Game Snippet

Llama 3.1 70B (Instruct)

May 2025·Mini Rhythm Game Snippet

Epic Fail·Broken Output

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Llama 4 MaverickMini Rhythm Game Snippet

Llama 4 Maverick

Mar 2026·Mini Rhythm Game Snippet

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Llama 4 ScoutMini Rhythm Game Snippet

Llama 4 Scout

Mar 2026·Mini Rhythm Game Snippet

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Inception: MercuryMini Rhythm Game Snippet

Inception: Mercury

Mar 2026·Mini Rhythm Game Snippet

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Inception: Mercury 2Mini Rhythm Game Snippet

Inception: Mercury 2

Mar 2026·Mini Rhythm Game Snippet

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MiMo-V2-FlashMini Rhythm Game Snippet

MiMo-V2-Flash

Dec 2025·Mini Rhythm Game Snippet

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MiMo-V2-OmniMini Rhythm Game Snippet

MiMo-V2-Omni

Mar 2026·Mini Rhythm Game Snippet

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MiMo-V2-ProMini Rhythm Game Snippet

MiMo-V2-Pro

Mar 2026·Mini Rhythm Game Snippet

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MiniMax M2Mini Rhythm Game Snippet

MiniMax M2

Oct 2025·Mini Rhythm Game Snippet

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MiniMax M2-herMini Rhythm Game Snippet

MiniMax M2-her

Nothing here. The model returned empty. We stared at it for a while.

Jan 2026·Mini Rhythm Game Snippet

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MiniMax: MiniMax M2.1Mini Rhythm Game Snippet

MiniMax: MiniMax M2.1

Dec 2025·Mini Rhythm Game Snippet

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MiniMax M2.5Mini Rhythm Game Snippet

MiniMax M2.5

Feb 2026·Mini Rhythm Game Snippet

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MiniMax M2.7Mini Rhythm Game Snippet

MiniMax M2.7

Mar 2026·Mini Rhythm Game Snippet

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Mistral Large 3 2512Mini Rhythm Game Snippet

Mistral Large 3 2512

Dec 2025·Mini Rhythm Game Snippet

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Mistral Medium 3.1Mini Rhythm Game Snippet

Mistral Medium 3.1

We can't display this one. It's not us. Well... it might be us.

The model was asked for a web page. It produced something else. We're not going to define what.

View raw output

# Neon Pulse Rhythm Game

Here's a complete browser-based rhythm game with a futuristic neon theme. Players must hit notes as they reach the target zone in sync with the music.

```html
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Neon Pulse Rhythm Game</title>
    <style>
        :root {
            --neon-pink: #ff2ced;
            --neon-blue: #0af2ff;
            --neon-purple: #bf00ff;
            --neon-green: #00ff9d;
            --dark-bg: #0a0412;
        }

        body {
            margin: 0;
            padding: 0;
            background-color: var(--dark-bg);
            color: white;
            font-family: 'Arial', sans-serif;
            overflow: hidden;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            user-select: none;
        }

        #game-container {
            width: 80%;
            max-width: 800px;
            height: 90vh;
            max-height: 600px;
            position: relative;
            background: rgba(0, 0, 0, 0.5);
            border-radius: 10px;
            box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
            overflow: hidden;
        }

        #game-area {
            position: absolute;
            width: 100%;
            height: 80%;
            bottom: 20%;
            background: linear-gradient(to bottom,
                rgba(10, 4, 18, 0.8) 0%,
                rgba(10, 4, 18, 0.6) 50%,
                rgba(10, 4, 18, 0.8) 100%);
        }

        #judgment-line {
            position: absolute;
            bottom: 20%;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg,
                var(--neon-pink),
                var(--neon-blue),
                var(--neon-purple),
                var(--neon-green));
            box-shadow: 0 0 10px var(--neon-blue),
                        0 0 20px var(--neon-pink);
        }

        #note-highway {
            position: absolute;
            width: 80%;
            height: 100%;
            left: 10%;
            display: flex;
            justify-content: space-around;
        }

        .lane {
            width: 20%;
            height: 100%;
            position: relative;
        }

        .note {
            position: absolute;
            width: 60%;
            height: 20px;
            left: 20%;
            background: var(--neon-blue);
            border-radius: 5px;
            box-shadow: 0 0 10px var(--neon-blue);
            transition: transform 0.1s linear;
        }

        .note.hold {
            height: 100px;
            background: var(--neon-purple);
            box-shadow: 0 0 10px var(--neon-purple);
        }

        .note.hold .tail {
            position: absolute;
            width: 100%;
            height: 80%;
            bottom: 0;
            background: rgba(191, 0, 255, 0.3);
            border-radius: 5px;
        }

        .note.pink { background: var(--neon-pink); box-shadow: 0 0 10px var(--neon-pink); }
        .note.green { background: var(--neon-green); box-shadow: 0 0 10px var(--neon-green); }

        #key-indicators {
            position: absolute;
            bottom: 10%;
            width: 80%;
            left: 10%;
            display: flex;
            justify-content: space-around;
        }

        .key {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.5);
            border: 3px solid rgba(255, 255, 255, 0.2);
            display: flex;
            justify-content: center;
            align-items: center;
            font-size: 24px;
            color: rgba(255, 255, 255, 0.5);
            transition: all 0.1s;
            user-select: none;
        }

        .key.active {
            transform: scale(0.9);
            box-shadow: 0 0 20px var(--neon-blue);
        }

        .key.pink { border-color: var(--neon-pink); }
        .key.green { border-color: var(--neon-green); }
        .key.pink.active { box-shadow: 0 0 20px var(--neon-pink); }
        .key.green.active { box-shadow: 0 0 20px var(--neon-green); }

        #score-display {
            position: absolute;
            top: 10px;
            left: 10px;
            font-size: 20px;
            color: var(--neon-blue);
            text-shadow: 0 0 5px var(--neon-blue);
        }

        #accuracy-display {
            position: absolute;
            top: 10px;
            right: 10px;
            font-size: 20px;
            color: var(--neon-green);
            text-shadow: 0 0 5px var(--neon-green);
        }

        #judgment-text {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            font-size: 48px;
            font-weight: bold;
            color: white;
            text-shadow: 0 0 10px white;
            opacity: 0;
            transition: opacity 0.2s;
        }

        #combo-display {
            position: absolute;
            top: 50px;
            left: 50%;
            transform: translateX(-50%);
            font-size: 24px;
            color: var(--neon-purple);
            text-shadow: 0 0 5px var(--neon-purple);
        }

        #start-screen, #game-over-screen {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.9);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            z-index: 10;
            color: white;
            text-align: center;
        }

        #game-over-screen {
            display: none;
        }

        .neon-button {
            padding: 12px 30px;
            margin: 10px;
            border: none;
            border-radius: 5px;
            background: linear-gradient(90deg, var(--neon-pink), var(--neon-blue));
            color: white;
            font-size: 18px;
            cursor: pointer;
            transition: all 0.2s;
            box-shadow: 0 0 10px var(--neon-blue);
        }

        .neon-button:hover {
            transform: scale(1.05);
            box-shadow: 0 0 15px var(--neon-pink);
        }

        .instructions {
            margin: 20px;
            max-width: 70%;
            line-height: 1.5;
        }

        #song-title {
            font-size: 36px;
            margin-bottom: 20px;
            color: var(--neon-purple);
            text-shadow: 0 0 10px var(--neon-purple);
        }

        #final-score {
            font-size: 28px;
            margin: 20px;
            color: var(--neon-green);
            text-shadow: 0 0 5px var(--neon-green);
        }

        .difficulty {
            margin: 10px;
            padding: 5px 15px;
            border: 2px solid var(--neon-blue);
            border-radius: 5px;
            cursor: pointer;
            transition: all 0.2s;
        }

        .difficulty:hover {
            background: rgba(0, 242, 255, 0.2);
        }

        .difficulty.selected {
            background: rgba(0, 242, 255, 0.4);
            border-color: var(--neon-pink);
        }
    </style>
</head>
<body>
    <div id="game-container">
        <div id="game-area">
            <div id="note-highway">
                <div class="lane" data-key="a"></div>
                <div class="lane" data-key="s"></div>
                <div class="lane" data-key="d"></div>
                <div class="lane" data-key="f"></div>
            </div>
            <div id="judgment-line"></div>
        </div>

        <div id="key-indicators">
            <div class="key" data-key="a">A</div>
            <div class="key" data-key="s">S</div>
            <div class="key pink" data-key="d">D</div>
            <div class="key green" data-key="f">F</div>
        </div>

        <div id="score-display">Score: 0</div>
        <div id="accuracy-display">Accuracy: 100%</div>
        <div id="combo-display">Combo: 0</div>
        <div id="judgment-text"></div>
    </div>

    <div id="start-screen">
        <h1 id="song-title">NEON PULSE</h1>
        <div class="instructions">
            <p>Hit the notes as they reach the judgment line by pressing the corresponding keys:</p>
            <p><strong>A</strong> <strong>S</strong> <strong style="color: #ff2ced;">D</strong> <strong style="color: #00ff9d;">F</strong></p>
            <p>Hold notes for the duration of the long notes!</p>
        </div>

        <div style="margin: 20px;">
            <span class="difficulty selected" data-difficulty="easy">EASY</span>
            <span class="difficulty" data-difficulty="medium">MEDIUM</span>
            <span class="difficulty" data-difficulty="hard">HARD</span>
        </div>

        <button class="neon-button" id="start-button">START GAME</button>
    </div>

    <div id="game-over-screen">
        <h1 id="song-title">GAME OVER</h1>
        <div id="final-score">Final Score: 0</div>
        <button class="neon-button" id="restart-button">PLAY AGAIN</button>
    </div>

    <audio id="game-music" src="data:audio/mpeg;base64,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