This game has potential, however you should keep in mind adding some levels that actually require you to use both hands. Currently you could just get the right side all the way through and then the other side. You need hazards that can be faulted by the left or right hand providing safe passage for the other hand. ALso when you make it to the 4th or 5th level you can start pushing blocks around, i recommend making it so these blocks have no rotation that would prevent them from getting stuck after being pushed. Not bad, keep working on it.