Invasion

Collect all trophies in game.

Destroy an enemy.

Destroy an enemy with crossbow power up.

Destroy an enemy with multi shot power up.

Destroy an enemy with dagger power up.

Destroy an enemy with hammer power up.

Destroy enemy attack with weapon.

Collect shield power up.

Destroy half the enemies to reach halfway through the level.

Destroy boss with weapon.

Save at least 1 base from destruction.

Complete a level by destroying all enemies.