Can't say anything that hasn't already been said about the pixel art and music (I'm a sucker for Chipzel-like funky chiptune music), and the rest of the presentation is off the charts (I especially love the audio details like the introduction music, sound design on the electricity, and the interface bouncing to the beat. The UI buttons being pressed as I press them is also a nice touch). My main compliment is the enemy design - they're simple patterns, but they mesh perfectly with the core idea. That said, I think the upgrades are a little simple for a roguelike. I don't feel particularly excited by getting a little bit more health or an extra peg, and I think if this were to ever be expanded upon, I'd love to see some powerups that shake up the strategy a little (Something that affects the pegs directly, maybe? I'm not a great armchair designer). That said, my concerns with the upgrades are very small. I can easily see this placing high in the jam.