This was a really neat homage! I really love the idea of inverting Super Hexagon :)
I wasn't quite able to make 60 seconds, but I got 46 without a lot of trouble. I did find myself misclicking or feeling like I'd clicked a block in time, but still got hit by it - I'm not sure whether touch devices have bigger "click area" for presses, but maybe mouse controls could be improved by having a larger radius of effect.
Hope you had a positive experience with Godot, and thanks for doing a Linux build! :D