Fun little platformer - like others mentioned, I encountered a few bugs.
At the start of level 2, the second switch wouldn't change the direction of the mirror. I restarted the level and it worked fine.
Also on level two, the box spawner got stuck in a loop of spawning boxes after one of them landed on the button. Couldn't get it to stop without having to stand on it myself, spawning more boxes.
Good entry though