Show HN: DanceJump – play a DDR-style dance game on YouTube (Chrome and Edge)

Hi HN,

DanceJump is a small browser-based, DDR-style rhythm game that runs directly on top of YouTube videos. The Edge add-on was just approved, so it’s now available on both Chrome and Edge.

The idea is simple: press play on any YouTube video and get instant DDR-style gameplay. Step charts are auto-generated from the audio, so there’s no need to search for chart files or set anything up. With auto-charting, the goal is accessibility and low friction: making rhythm gameplay easy to access. It is still possible to load and play your stepfiles from disk for pro experience.

Controls & input

Keyboard: WASD Steps B Start N Select

Select + W/S: Change Difficulty

Hold Select (2s): Join Game (Multiplayer only)

Dance Pad / Controller: D-Pad / ABXY Steps Start / Menu Start Select / Back Select

Settings

All settings are available from the extension puzzle/menu popup, pin it for easy access.

- Audio sync / offset adjustment (important for TVs, HDMI, Bluetooth audio) - Difficulty and density controls - Input mapping options - Chart library

More detailed control and setup info is here: https://dancejump.com/extension/help

Firefox support is in progress. Feedback especially around timing, onboarding, and pad play is very welcome.