Pilot a spaceship and protect the Earth from waves of alien invaders and incoming asteroids!
- Campaign with 13 levels
- Aliens move and shoot faster with each wave in Survival Mode
- Randomized alien group spawns in Survival Mode
- 4 Survival Mode difficulties (Easy, Normal, Hard and NIGHTMARE!)
- New alien groups
- Asteroids which can split into smaller asteroids when destroyed
- 5 new powerups