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