I like the gameplay! Well done.
Level 3 was really hard for me because he keeps rolling after I jump on the platforms. I had to just start using the shoot to navigate the platforms.
Also, on level 3, I shot a piece at a wall with a heavy object inside, they both fell in the lava and now the transfer kills you because it is under the lava and there is no way to remove or cancel it.
A settings menu with mouse sensitivity would be nice