The spine (torsoTop and torsoBot) is now locked to its rest position and never moves. Only the head, arms, and feet react to physics, and they're clamped to a max drift of 0.08 units from their rest positions so they bend much less.

**Next Ideas:**
1. **Add facial expressions** - Show different faces (happy, stressed, sleepy) based on which shape the person last bounced off
2. **Trail effects** - Add a fading motion trail behind the character as it bounces around

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