The overall mechanics of the game is simple and well done. I really like how much clarity the polished version has with the updated models compared to the first version. The mini portal tutorial was a great addition since I initially didn't realize they were portals before. I would suggest giving players a few seconds before setting the enemies into motion at the beginning of certain levels. There are a lot of different colors at work and it might be hard to determine the starting position of the player in time prior to moving.