Steredenn achievements

Beat the game using the Blaster only

Try all upgrades.

Complete a boss rush.

Destroy the Alien ship.

Defeat all the bosses in the Arena at least once.

Finish the first loop.

Beat the Red Baron

Destroy the Old Friend.

Destroy the Astroworm.

Destroy the Garbage Collector.

Meet the Mothership.

Kill 10000 fighters.