Pretty fun little platformer/puzzle game! It's short, but solid. I didn't notice any bugs/issues, aside from one time that I got stuck under one of the moving platforms, but that was mostly my fault for standing under it then pressing the lever :P Maybe a restart button for when you get stuck would be good?
One small tweak I'd make would be to switch the "Advance Dialog" button to something closer to the WASD keys, such as perhaps R or Q. Having W as a jump option in addition to space is nice though.
Good job!