Here is the full list of all 37 Steredenn achievements.
Beat the game using the Blaster only.
Kill 10000 fighters.
Try all upgrades.
Finish the first loop.
Defeat all the bosses in the Arena at least once.
Pick all weapons at least once.
Pick all Heavy weapons.
Pick all Bots weapons.
Kill a spy with the flamethrower.
Pick all Energy weapons.
Dies 50 times.
Destroy 100 cargos.
Pick all Bullets weapons.
Finish the game once.
Destroy the Nemesis.
Meet the Mothership.
Destroy the Mothership.
Destroy a Battleship boss.
Destroy a Carrier boss.
Destroy a Cruiser boss.
Kill 2500 fighters.
Pick all Melee weapons.
Destroy a Destroyer boss.
Kill 1000 enemies.
Pick 15 differents weapons.
Kill 500 fighters.
Kill 250 enemies.
Destroy a Frigate boss.
Kill 50 enemies.
Destroy a Bomber boss.
Destroy the Alien ship.
Destroy the Old Friend.
Destroy the Garbage Collector.
Destroy the Astroworm.
Beat the Red Baron
Destroy the Super Chabal.
Complete a boss rush.