Good, but...
The physics for this is pretty simple, and already I found a few bugs, including one where the ball enters a wall temporarily on a 45-degree corner, and falling straight down after hitting a wall on the side...
When I first seen this, I was like, "Wow another flash version of Portal!", and in a bad way its what I got. Theres no originality in this game.
The ghost rooms are also buggy, at one time I was shown a complete opposite to where I was going to warp to, and lag found by having the ghost rooms means theres a bug with them, not with someone's slow CPU...
Meh, but what can I say, this game is over-rated. Short, unchallenging and buggy - not the sort of game that deserves such a high score.
The music is terribly annoying - I listened to a "half head fuck mix" which sounded better than this, its too repetitive and hurts my brain.
But on the good side - graphics were nice, the idea was great and controls were perfect. It is obvious that you worked hard on it - but the finished product could of been alot better.