The game is very fun. And it's very simple, with easy-to-understand mechanics. The tutorial is also quite good. The glitch effect is utilized well. The art could use some polish. I wish there were UI buttons, such as a restart button or a pause and resume button. The final boss could've had its own health bar, which would have been fun. It's really fun overall.
But it is a well-rounded game, overall. Simple. Basic.