Basically, there are two cubes. They're almost the same; both are cubes and follow the same instructions. The only problem is: they're attracted to opposite gravities- and that makes it just a bit tougher when they're trapped in a platformer. Arrow keys or awsd to move. Both cubes have to be touching the yellow to move on. R to restart.
This is a short platformer of 4 levels. I probably won't finish this unless requested. The bonus level has not been tested. Any constructive feedback, feel free to comment. Platformer code modified from @Wes64's. Created by @neanderthal11