This is a draft> I know it's short... I will make more levels. This is a classic platformer. arrow keys to move, get to the end, Which by the way there is no set end yet. Press space to change your cube. (I like the second one.)
I did it all by myself, with slight help from @aairfanf, which I had to finish the code because I did something wrong and the cube went about a million miles and hour nonstop.