Same as some other I got stuck at the second level, I like the mechanic but the physics of the box on the second level is a bit janky(it doesn't fall up again if it has fallen to the ground under the laser). I do like the music and the art style!
I knew that, but I didn't know that it could literally stop you from progressing. I thought that it would give an advantage to replayers, because if you just jump before the boxes can fall, you can make it past.