Surpisingly fun
-- I really enjoyed this game. When you get to your first difficult level, you have to learn from what you've tried in order to come up with new f1 and f2 combinations. My only complaint is after you get use to the skills, the game ends rather quickly. It must be harder to make puzzles than it is to solve them, but try to come out with more! Very fun though, even with such a simple concept. Maybe have more/less program slots open up to change up the level design?