Ours was only one platform. We had very good ideas but we went with this one because we figured out we could give the player the control of the platform, and so he'd have to be aware of the movement of both the platform and the character.
In the end, we got a pretty solid game imo. You're a surfer astronaut, and the platform is a hovering surfboard. We came up with some cool mechanics, for example, there are satellites that fire a laser beam that kills the player, but they have a button in the back that the board can press in and the laser turns off. We tried to make a WebGL build, but it didn't work very well, so sadly, you have to download it, but we'd appreciate a lot getting some feedback!