It's very hard, or actually impossible, to see which part is the end of the connector. I got confused at the start since the electricity didn't go through the connectors, even though they look connected. I think adding some sort of indicator on each end is needed, such as different colouring or different design.
Even though I say that, fortunately clicking on the power on button doesn't consume any moves, so I can just test the circuit by powering it on. It's just a little bit tedious to do that each time, but it's not really that bad.
I can see the correlation between the theme and the game. How the electricity flows through the circuit one at a time, and the added fuses that explode according to the flow of electricity. It's really satisfying.
Very nice looking game. I really like the simple art style. It looks clean as well.
BGM fits with the game. The sound effects are good as well.