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