Haunt is a really great game for OSX designed around the LEAP Motion controller. You play as a cool scary ghost and try to collect the cool ghost stars so you can accumulate scary cool points.
I made it while getting to know Vuo, a sort of spiritual successor to Quartz Composer. The source code is on github, but don’t look to it as an example of good Vuo practice; there’s a lot of room for optimization.
Almost all the assets are from The Cutting Room Floor, a repository of unused files bundled in video games. The Haunter model is from Pokemon XY.