It feels sort of gimmicky.
Graphics weren't very good, and though the variety was large, very little of it was appealing and the general shifting was extremely unfriendly with small objects. I'd have to wait until it moved back into view to change it.
The Portal feature was something I've never seen in a Flash before, so kudos on that; It was smooth, well designed, and didn't have any immediately noticeable problems. It has a great deal of potential.
The Madness aspect of this flash seems like something just to attract attention to the uploading concept. Good code, bad game.