I think the player's movement controls feel a little unwieldy because the walking speed is much faster than the jump height. I also think the start-up for shooting the gun when you need to shoot something midair was frustrating. The levels where you had to bounce the projectiles felt a little too tricky to try and get the angles right. I really enjoy the use of shooting projectiles through the teleporters and trying to activate buttons that change the level I thought that was the most interesting part :)