First off, I really like these types of games, it will always be fun to just mess around with physics based movement, so good choice on that! But I felt the game lacked a bit of a tutorial/ progression. For the first few minutes on the first level I had no idea there was even a building to my left, as I spawned facing what was obviously a goal, with some floating blocks leading towards it. So maybe add In something that hints to the player that the level isn't as basic as it first looks. Other than that though, really nice job!