Aw man, that's a good idea, but I didn't notice your comment up until now and I don't think I'll have time to implement that, thanks for playing though!
Level 5 is the introduction of the gates, if you mean the baseball one, you have to do it in two parts for the first and last two, and if you mean the second gates one you can do little circles to slow down the ants, I also tried your game, and I loved it, keep up the good work!
Oh and also while writing this comment I accidentally beat your game by not moving, maybe the foot should try to stomp closer to the player instead of a random position?