I had a good time. I think I got all the cake slices I could at 6, but I couldn't figure out what to do with the tall tent looking building. I seemed to be blocked off from entering it, and I had more cake slices than the sign said... which might have been the problem? Maybe I needed exactly six. I tried to use the spring to get in the top, but I didn't get anywhere close to high enough to get in that way.
Either way, I think my main advice is to make objects communicate better with the player, like adding some form of animation or sound effect to crumbling platforms to let you know how long you have left. And to also work with making the controls feel a little better.
Still, fun game and I enjoyed myself, thanks!