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