Impressive, I really loved this game. I liked how you interpreted the theme. The puzzles are fun, balanced, and satisfying, even just watching the little robots walk around.
The music can get a bit annoying after a while, but it actually fits the game very well. I don't think adding a speed-up button is necessary, but it is not a bad idea, and I think it would be fairly easy to implement in your game.
I also liked how every level introduced a new way of using the plugs. Great work!
Unfortunately, I couldn't finish the game. I reached this level and couldn't beat it.
