A simple mechanic but used so well. The design of the puzzles were very good and actually make you think. The levels were of the right difficulty and I found the mechanic so satisfying that I ended up using it in places where I could have just jumped normally XD.
The difficulty was nigh-on perfect and every level was just so satisfying and fun. The only qualm I have is that you could probably reduce the size of the hitbox on the spikes. They seem a little too big.
Otherwise, I really had no other issues with this game. Amazing entry :)