This is a really cool concept, and I enjoyed the first 4 levels! Levels 5 and 6 didn't load for me for some reason - it was just a black screen...
The concept of controlling two different things and using them to manipulate machinery was a smart one!
I see that you've got sound effects, but might I suggest adding some more feedback, e.g. particle effects, to make doing things in-game more satisfying.
All in all, this was a fun game with a fun concept which I hope you develop further!