good game but i have a gripe with the momentum mechanics and the pigs! the pigs are really hard to manage! and its really hard to see what tile your on because of how the tiles are designed! this would be ok if your portals didnt go to only 1 tile because this combined with the fact that sometimes the game just stop ur momentum entirely when u portal just really makes the momentum levels really annoying! besides these gripes this is a pretty good game! oh and this game is hard so if ur not very good at puzzles games than dont play this game until u get good at puzzle games!