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