This is a well balanced difficulty ramp. I played several times and kept getting stuck on three, but then it was very satisfying to finally make it to round 7. Surprisingly fun once I got the hang of it, and the snake eyes is a nice mechanic to keep you on your toes.
If you continue working on the game, it would be wonderful with a little more "juice" to hitting the power switch or connecting the wires!
Great job, and congrats on submitting.