Unity Space Invaders-style prototype for Android.

What is included:
- polished UI flow with start screen and game over screen
- touch-friendly controls for mobile
- face-based enemies loaded from Assets/Resources/Faces
- score, lives, wave-based gameplay, and escalating difficulty
- persistent high score and combo streak tracking
- lightweight sound effects and a looping ambient soundtrack
- simple explosion VFX when enemies are destroyed

How to use:
- Open the JU folder as a Unity project in Unity Hub.
- Add your friends' portraits as PNG/JPG files in Assets/Resources/Faces/.
- Build for Android from File > Build Settings.

Controls:
- Keyboard: A/D or arrows to move, Space to shoot.
- Mobile: tap the on-screen Left / Right / Fire buttons.

Recommended next enhancements:
- sound effects and background music
- richer animations and explosion VFX
- difficulty scaling per wave
- a proper main menu with logo and settings
