Issue any two button combo.

Find 30 treasures

Defeat 50 enemies with the Dragon Sniper

Defeat 20 enemies by shooting from the hip (without aiming with L1)

Defeat 20 enemies with the Pistole

Defeat 20 enemies with gunfire by aiming while hanging

Defeat 30 enemies with the Moss - 12

Defeat 20 enemies with headshots

Defeat three enemies with one explosion

Defeat 20 enemies with hand-to-hand combat

The player has completed the game without harvesting any Little Sisters

The player has become a Big Daddy

Successfully invent at least 100 items