I had a HUGE amount of fun with this one. SDLZM is an iPad game I developed in conjunction with a tutorial on SpriteKit, a new iOS framework for building games. The game plays like a simple retro side scrolling shooter: zombies spawn from the right and our Dino has to blast them before they get to the other side. I taught a Halloween special of my iOS development workshops at NYU with this and everyone seemed to have a blast.
The tutorial for building this game can be found here.