Bounce an object around a house, guided only by a visual representation of the sound it makes when rolling and when impacting walls. Try to reach the target (which only lights up when it can hear you) while hitting as few walls as possible.
Tools and Technologies:
GameMaker (any product)
Used GameMaker Studio. I can't actually build it for anything other than Windows, but the source could be built for other platforms by someone who has the required licenses. The game itself should work on anything with a keyboard.
Either run the single executable provided in releases, or build the source with GameMaker for whatever platform you have a license for.