Use the teleporter 8 times. (Map Pack 3 only)

Finish the game in Easy Mode

Kill 50 enemies with the M4

Kill 30 enemies with the Dragon Sniper

Kill 30 enemies with the MP40

Find 15 treasures

Kill 100 enemies with headshots

Kill five enemies in a row with headshots

Kill 30 enemies with headshots

Kill 50 enemies with the PM - 9mm

Kill 10 enemies with headshots

Obtain the Ray Gun, DG-2, and the Monkey Bomb at the same time in a game. (Map Pack 3 only)