Maybe I took things a little too literally...
The Bonding Of Isaac
A Roguelike Social Simulation with Bullet Hell elements thrown in
How do you make a car better? MOAR ENGINES!
Claim your place at the top of the treehouse by killing everyone in your way... even the tree!
Room & Gloom
Scale obstacles as a shapeshifting polygon!
Bungle around as you try to bounce for as long as you can!
Open source UE4 FPS game