Cool concept, when you rotate the box, the cube inside it kinda freaks out a little bit, so it makes it a bit hard to control with precision (like the game asks you to do) but it's not too bad once you get the hang of it... Good Job!!
Uhhh, i'm not a hoster so i don't know for sure if you can... Imo If you just added a build and didn't changed anything else form the Windows version i think it's fine (but i do think you have to leave the previous builds)
But again, if you really want to be sure, it's better if you ask Icoso :3