South Park: Chef's Luv Shack
Spank The Monkey mini-game:
In the Spank The Monkey game, notice that the monkey's butts become
red when Mr. Mackey hits them, and become redder every time they
are hit. If you forget the pattern, watch the order that the butts
turn back to normal.
Better variety of mini-games:
Play as Cartman if you want a better variety of mini-games. He is
the only character that can play the Rodeo and Beefcake mini-games.
Eat every single can of Weight Gain 4000 in the Beefcake mini-game
to see a bonus animation at the end.