Narcoleptic Monster Truck Caper
-Standard Gone in 60 Seconds type plot, you're with a small team, trying to steal really expensive cars in a very short amount of time. Only, You're Narcoleptic, and your buyer only wants Monster Trucks--will you succeed in making it back before the unseen, randomized timer leads to a gigantic, gloriously catastrophic crash?
Ultimate Samurai Pinball
-This possibly already exists somewhere.
Subatomic Janitor Universe
-You're a common janitor, working in the physics labs one night when an experimental microsupercondenser shrinks you to the the size of an Atom! You seem out of place, until you realize that being this big means all kinds of particles are now trying to attach to you--some beneficial, others deadly! Luckily, you have your trust broom Phinneas, and the two of you can stave off the impending collisions! But for how long?
[I guess it would be like Super Stardust HD?]