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.