Nice job on this. It kind of reminds me of puzzle games like Portal.

I didn't get far with it though because I feel like I am missing  a control to pick up the cube or something because I found myself in situations where I would need the same cube I had just used to press another red button later. But then there is a disintegration field or even steps in the way that don't let me move the cube over to it. If I could go up the steps and then pick up the cube from down below and drop it on the switch above then I would understand.

Scaling the cube up or down didn't help in that situation either.

Good job though.