Pretty much it
You covered it all pretty good. I laughed at the square and the other random shape making sounds. I have seen far to many crappy animations like that, and you just made it funny. For the first and last time.
Ha ha, I love the comment a few below mine "Why is bleach stupid??" XD.
I wonder how many other animations like this have been made.. Its not a particulary new idea (Or at least I get the feeling it isn't.) But you still made me laugh, and thats better than what a lot of other animations have made me do.