I think the mechanics are great and your level design is really good. The main issue I have with the game is how simple it is. I feel like every great game takes a simple idea and adds a unique twist or mechanic. Whether that's slowing down time, flipping gravity, or switching properties of the character, these games use these twists to make them amazing. I think adding something like that would make this game even better. As it is though, good game. There are no apparent flaws, just wish there was more. Well done!