Invasion

Destroy an enemy.

Destroy enemy attack with weapon.

Destroy an enemy with multi shot power up.

Destroy an enemy with crossbow power up.

Destroy half the enemies to reach halfway through the level.

Destroy an enemy with dagger power up.

Collect shield power up.

Save at least 1 base from destruction.

Complete a level by destroying all enemies.

Destroy boss with weapon.

Destroy an enemy with hammer power up.

Collect all trophies in game.