Realy nice game. The aesthetics is good, portal effects are nice and animations are cool, music is pleasant. UI is nice, but little bit strange. Why don't we have an option to access the leader board and credits from the main menu? The concept of game is interesting (Little similar to ours by the way), but gameplay itself looks unfinished. Camera movements and controls are strange, and there are some bugs, like possibility of getting out of the zone with obstacles (watch the screenshot). Also, on our opinion, game lacks dynamics.
In general, this is a cool game which has a lot of interesting features.