Thanks for the feedback! I agree that graphics were not a priority on this project, so that's totally fair :)
I have to disagree with simple mechanics being a downside--Personally, I think the amount of thought required for later puzzles is sufficient, especially given that the underlying system is simple. But, that said, there's also definitely room for more mechanics as well. I had ideas for blocks that rotate when the pulse exited them, different colors of pulses that would need to activate corresponding colored gates, gates that must be a part of the path on the infinite loop, not just passed through at some point, etc. Many got cut due to the game jam time limit unfortunately. Are there other mechanics you think would be interesting to spice things up?
Thanks for playing!