Collect all the stickers in a single World.

In multiplayer, clobber one of your chums as the champ.

Simultaneously slap each other.

In multiplayer, snatch an item from the clutches of another player.

Acquire all trophies

Complete Deadly Lover's Fortress on Hard Difficulty

Complete all levels including the Hidden objectives on Nightmare

Complete the "Weird Science" objective in under 4 minutes

Complete the hidden objective in Deadly Lover's Fortress

Defeat Elisabeth and Thomas

Survive a Dark Round without receiving damage

Complete The Ashes of Sker Hotel on Hard Difficulty

Complete the hidden objective in The Ashes of Sker Hotel