Aliens Attack

Aliens Attack master Collect all trophies in game.

Destroy alien ship bullet Destroy bullet fired by alien ship.

Destroy with left turret Destroy an alien ship with left turret.

Destroy with center turret Destroy an alien ship with center turret.

Destroy with right turret Destroy an alien ship with right turret.

Destroy power up alien ship Destroy alien ship dropping power up

Collect ammo Collect ammo power up.

Halfway through Destroy half the alien ships in game.

Score 50K points Score 50000 points in game.

Save 2 turrets Complete mission with at least 2 turrets left.

Save 2 cities Complete mission with at least 2 cities left.

Complete a level Complete a level by destroying all alien ships.