You defeated the Meth Tweekers while wearing the Evil Cartman goatee and bald cap.

You found Jesus while playing as a Jew.

You accepted your fate and chose the name Douchebag yourself.

Completed the gun tutorial.

Enhanced the Rechargeable Tumbler to its max.

Completed Chapter 1.

Find a secret egg

Defeated Behemoth.

Opened 200 boxes.

Caught 20 different fish.

Completed Enya and Su's story.

Collected 200 Data Bank entries (Memorysticks, Documents, or Passcodes).