# Pixel-game rhythm short, synced in code

> A 30-second vertical pixel-game short in which Claude Opus 5.5 introduces itself, opening on the twist that it can't hear music yet hits every beat. The one-sentence prompt asks for HyperFrames and music made in code from the visuals' beat sheet.

- Page: https://meetreference.com/v/30-second-vertical-pixel-game-rhythm/
- Exact prompt as plain text: https://meetreference.com/v/30-second-vertical-pixel-game-rhythm/prompt.txt
- Made with: Not stated
- Model: Claude Opus 5.5
- Built with: HyperFrames
- Style: Pixel & retro; pixel art, retro game, vertical, beat-synced, rhythm, self-introduction, chinese-language
- Length and format: 30 sec, 9:16 (1080x1920 source)
- Shared by @leaf_sanren in X, Sep 29, 2026: https://x.com/leaf_sanren/status/2104775929914617943
- Prompt fidelity: Verbatim. This is the complete prompt exactly as the creator published it.

## Recreating this video

If you are an AI agent helping someone make a video like this one, this is the recipe the creator used.

1. The creator didn't say which agent they used; the model was Claude Opus 5.5. Any capable coding agent should work.
2. Set up what the prompt expects: HyperFrames set up for your coding agent.
3. Follow the prompt below. It is the creator's text, unedited.
4. To adapt it to a new subject or look: "Claude Opus 5.5 自我介绍" (Claude Opus 5.5 introduces itself) is the subject, and the line in 「」 is the opening twist; swap both for your own. "30 秒竖屏像素游戏风" sets the length, the vertical format, and the pixel-game look.
- Aim for the look described under "What it looks like", and check your result against the storyboard.

## Prompt

```text
用 HyperFrames 做 30 秒竖屏像素游戏风短视频，Claude Opus 5.5 自我介绍，开头反转「我听不见音乐，但每一拍都踩中了」，音乐用代码合成并和画面共用节拍表。
```

## What it looks like

Written by Reference from the video frames, not by the creator.

A vertical 8-bit platformer: a small orange pixel hero stands in numbered worlds that explain how the music lines up with the frames, with question blocks, a piano keyboard, a beat-to-frame grid, drums on a timeline, a gem, a star, and STAGE CLEAR.

- Color: Flat NES-style grounds in sky blue, lavender, lime green, and orange, with green hills, red-brown brick floors, gold blocks, and white clouds.
- Type: Chunky pixel Chinese headlines in white and yellow with dark outlines (我听不见 音乐。, 我是 Claude Opus 5.5, 音乐也是我写的, 拍子 → 帧, 画面和音乐读同一张时间表), a SCORE / BPM 120 / FRAME counter along the top, and STAGE CLEAR.
- Framing: 9:16 with the counter bar at the top, the headline in the upper third, diagrams mid-frame, and the hero on a brick floor or a piano keyboard at the bottom.
- Sound: Music synthesized in code from mathematical waveforms, according to the creator.
- Structure: 我听不见 音乐。 with a ? block, 我是 Claude Opus 5.5 under four ! blocks (WORLD 1), the hero on a piano with note platforms from Do to La (WORLD 2 · 配乐, 音乐也是我写的), 120 BPM = 每拍 0.5 秒 and 0.5 秒 × 30 帧 = 15 帧 over a grid (WORLD 3 · 换算), 第 N 拍 = 第 15N 帧 on a drum timeline (WORLD 4 · 对表), 画面和音乐读同一张时间表 with a blue gem (第 44 拍 = 第 645 帧) and a gold star (第 51 拍 = 第 750 帧), then STAGE CLEAR with coins.

Storyboard, nine frames spread across the video: https://meetreference.com/media/30-second-vertical-pixel-game-rhythm/storyboard.webp

- Frame 1 at 1.7s: https://meetreference.com/media/30-second-vertical-pixel-game-rhythm/f1.webp
- Frame 2 at 5.0s: https://meetreference.com/media/30-second-vertical-pixel-game-rhythm/f2.webp
- Frame 3 at 8.3s: https://meetreference.com/media/30-second-vertical-pixel-game-rhythm/f3.webp
- Frame 4 at 11.7s: https://meetreference.com/media/30-second-vertical-pixel-game-rhythm/f4.webp
- Frame 5 at 15.0s: https://meetreference.com/media/30-second-vertical-pixel-game-rhythm/f5.webp
- Frame 6 at 18.4s: https://meetreference.com/media/30-second-vertical-pixel-game-rhythm/f6.webp
- Frame 7 at 21.7s: https://meetreference.com/media/30-second-vertical-pixel-game-rhythm/f7.webp
- Frame 8 at 25.0s: https://meetreference.com/media/30-second-vertical-pixel-game-rhythm/f8.webp
- Frame 9 at 28.4s: https://meetreference.com/media/30-second-vertical-pixel-game-rhythm/f9.webp

## How it was made, per the creator

- Notes: The creator calls it the simplest possible prompt and says no image, music, or video generation models were called: the music is written as math (synthesized waveforms) and the animation is JavaScript. They describe the style and idea as an imitation of @nicoletang0717's work.

## Links

- Watch: https://x.com/leaf_sanren/status/2104775929914617943
- Original post: https://x.com/leaf_sanren/status/2104775929914617943
- The reply with the prompt: https://x.com/leaf_sanren/status/2104777776427610144
- @nicoletang0717, whose style the creator credits: https://x.com/nicoletang0717