Done! The beyblades now bounce much more dramatically:
- **Restitution** increased from 1.6 to 2.5 (more elastic collisions)
- **Knockback multiplier** increased from 1.4 to 2.0
- **Minimum bounce** increased from 180 to 280
- **Maximum bounce** increased from 400 to 600  
- **Tangent spin force** increased from 30 to 50
- **Max speed** increased from 400 to 550
- **Wall bounce** is now full reflection (2.2x instead of 0.8x dampening)