How about an Itchy & Scratchy mini-game? Something ala Minions Paradise where it's an actual game like say... Scratchy has to run a gamut of Itchys wielding various weapons and the longer you keep going the more cash and XP you win - with a possibility of donuts here and there.
Or maybe Itchy runs a route and you tap to slice, dice, and mangle Scratchy as he passes. The more Scratchys you kill the higher the payout.