I honestly don't know if you're supposed to "win" at this game at all. Given how insane it was with its experimental nature, I'm going to say no. The strangest part was when everything became black and you couldn't find the cube. Even if you did, you'd have no idea where to go to to make the other things go away. I guess I have to give you credit for creating a truly bizarre game. Spiritual people like me will enjoy it.
I hope you got a good grade, because this is so insane it deserves to be graded well. I thought that maybe the object of the game was not to touch the little dots as they were flying away. I touched some and nothing happened, so that can't be it. Whatever the purpose is, this is one ridiculous game. At least the music's nice.