The 3D game files already exist at `index3d.html` and `game3d.js`. Open `index3d.html` in your browser to play the 3D version! **Next Ideas:** 1. **Particle Effects** - Add explosion particles when ball hits paddles and trail effects for more visual pop 2. **Camera Controls** - Add mouse drag to rotate camera view and zoom with mouse wheel for different perspectives **Ready to level up your game? Pick one and let's build it!**