You defeated Princess Kenny while looking like David Hasselhoff.

You have collected half of the available costume sets.

You farted on the corpse of an aborted Nazi Zombie fetus.

You made friends with half of South Park.

You watched your parents have sex for 60 seconds.

You defeated the High Jew Elf Kyle in battle.

You knocked out 3 or more enemies with a single fart outside of battle.

You opened all of the garages in South Park.

You collected 15 Chinpokomon.

You have joined the KKK.

Over the course of the game, you've blocked 100 attacks.

You defeated the Boss Hall Monitor while wearing freckles.

You flung a turd of your own creation at an enemy.