Created a Geometry Dash MVP clone with:

✅ **Single-button input** - Space/tap to jump
✅ **Auto-scrolling level** - Automatic progression
✅ **Music-synced obstacles** - Placed on 128 BPM beat grid with visual beat flash
✅ **Basic obstacles** - Spikes, tall spikes, gaps, platforms
✅ **Instant restart** - 500ms delay on collision
✅ **Simple cube character** - Green square with rotation
✅ **Attempt counter** - Tracks your deaths
✅ **Distance tracker** - Shows progression

Open `index.html` in a browser to play!

**Next Ideas:**
1. **Practice Mode** - Add checkpoints every 500 distance so you can practice tough sections without restarting
2. **Ship Mode** - Hold to fly up, release to fall down - completely different feel using the same one-button input

**Ready to level up your game? Pick one and let's build it!**