Kill 50 enemies.

Kill 100 enemies.

Kill 250 enemies.

Kill 500 enemies.

Kill 1000 enemies.

Kill 5000 enemies.

Use Medkit 50 times.

Use Medkit 100 times.

Use 100 continues.

5 star rating on any area of the game.

5 star rating in all areas of the Docking Decks.

5 star rating in all areas of the Reactor.

5 star rating in all areas of the Factory.

5 star rating in all areas of the Armory.

5 star rating in all areas of the Quarters.

5 star rating in all areas of the Stasis Section.

5 star rating in all areas of the Living Rooms.

5 star rating in all areas of the Gardens.

5 star rating in all areas of the Laboratory.

5 star rating in all areas of the Control Room.

5 star rating on all levels.

Pick up a weapon on a level 50 times.

Use Protection Shield 50 times.

Use Scarab Speed 50 times.

Use Ram Rage 50 times.

Use Invulnerability 50 times.

50% game completion.

Beat the game on normal difficulty.

Restart level 50 times.

Restart level 100 times.

Full upgrade of all weapons.

Full upgrade of Assault Rifle.

Full upgrade of Multi Gun.

Full upgrade of Photon Gun.

Full upgrade of Rocket Launcher.

Full upgrade of Standard Gun.

50% of Arsenal Upgrade.

100% of Arsenal Upgrade.

Collect 500 ankhs.