Complete the catacombs without destroying any cell gate.

Destroy 5 crates with a single grenade.

Destroy 5 trucks in the north parking lot at the barracks before Machine Mike does with his tank.

Kill X Human-Piranha-hybrid things with the shredders.

Obtain 5 urinals.

Sleep 20 guards.

Destroy 5 drones by punching them.

Finish the game using no potty.

Reach level 10.

Reach level 4.

Reach level 2.

Finish the game.

Complete the part "A thousand eyes are watching you".