Done! The game now shows a glowing teal trail that traces your ball's path. The trail:
- Fades from transparent to bright as it gets closer to the ball
- Gets thicker near the current position
- Stores up to 200 points for a nice long trail
- Resets when you start a new level

**Next Ideas:**
1. **Ghost Replay** - Show your best path as a ghost ball so you can try to beat it
2. **Heatmap Mode** - Color the trail based on speed (red=fast, blue=slow) to analyze your shots

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