Defeat Crab Boss.

Defeat Eye Boss.

Successfully complete level 1 without using flashlight.

Successfully complete level 2 without any bridge or covers destroyed.

Successfully complete level 3 without switching the bridge.

Successfully complete level 4 without pasing through any gates.

Successfully complete level 5 without any bridge destroyed.

Successfully complete level 6 with all electro generators destroyed.

Successfully complete level 7 level without calling the train.

Successfully complete level 8 and keep all windows intact.

Successfully complete level 9 without closing any door.

Find gems in conteiner on level 10.

Destroy all breakable walls on level 11.

Successfully complete level 12 without any platform destroyed.

Successfully complete level 13 without any bridge destroyed.

Get the gem on level 14.

Successfully complete level 15 with an intact obelisk.

Don't change position before time out on level 16.

Successfully complete level without using range weapon.

Successfully complete level with full health.

Successfully complete game with 10 or more modifications on any range weapon type.

Successfully complete game with 6 or more melee modifications.

Successfully finish game with 12 or more injuries.

Defeat Copter Boss.

Successfully complete level 17 without ever touching the poisonous gas.