Lol, the explanation of how to make special abilities work is in the title page's "About" button... I spent a while just figuring stuff out in-game (it really wasn't obvious even with the instructions) and after finishing it I went and checked out that button and saw it would've made things a lot easier if I did that while I was trying to figure stuff out.
That said, IMO most of the fun in the game was figuring out how to get those special abilities to work to get through the levels; if I started off knowing how to use them, then getting through the levels would've been a lot more straightforward. If you were to expand this game, or make other games that try to capture the same spirit, I'd say to keep introducing new mechanics as the game progresses for the player to figure out how to use effectively to make it through.