Mood of the game is great, but I feel like you sacrificed the gameplay a bit to get there - the darkness and chromatic aberration make everything less clear.
And while your own power nodes are single-use, most of the environmental ones are not, which is a bit unintuitive. It wasn't clear to me at first what I'm giving up when connecting one of my own nodes. It could've been made clearer with a message like "total robot power now 50" or similar - could be a synthetized voice saying it for extra effect. Also if you waste your power early on before knowing all the mechanics there's no way to recover it later. Some better visualization for how long the power node range is would have also been very welcome.
Hope I don't sound too harsh since the game is still pretty innovative, and I like the look of the graphics and all. For a three-day project this is definitely impressive.