Here is the full list of all 37 Steredenn achievements.
Kill 10000 fighters.
Destroy the Alien ship.
Pick all Bots weapons.
Complete a boss rush.
Destroy the Mothership.
Pick all Bullets weapons.
Kill a spy with the flamethrower.
Try all upgrades.
Destroy a Battleship boss.
Pick all Melee weapons.
Destroy the Super Chabal.
Destroy a Carrier boss.
Destroy a Cruiser boss.
Destroy the Garbage Collector.
Dies 50 times.
Destroy 100 cargos.
Kill 2500 fighters.
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.
Meet the Mothership.
Destroy the Nemesis.
Pick all weapons at least once.
Pick all Energy weapons.
Pick all Heavy 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 Old Friend.
Destroy the Astroworm.
Beat the Red Baron