Really good! Simple core mechanic you added something on top of to make it 'glitch-like' and built around, worked very well. Very nice visuals and music fits..
But I do have some feedback.
Cards like weird gravity, camera and circular were really the game's most fun stuff to deal with, despite the fact circular is very hard, even frustrating, the challenge made sense. Maybe cards like harder blocks shouldn't even exist in my opinion, only if this was a much bigger game; and you could try to design only cards that change the game mechanically and that you actually have to play differently in order to succeed against unlike harder blocks, which almost always simply make the game harder. You probably wouldn't have had time for much else but if instead of having stuff like harder blocks seperate from the cards, like for example an upgrade screen that was instead a DOWNgrade screen, you get skill points every so often and you're forced to chose to put in: 'faster, take more damage or less max hearts, etc...' but that might mess up the flow since it'd take even longer in between rounds but just a suggestion.
Which brings me to the second point, game progresses a little too quickly in general. Might've been better if you tried to put in mind that it could be more dragged out instead of packing up all the fun so tight together most players won't even experience everything.
Again, VERY good game! Polished to damn near perfection despite simplicity, everything works, even from a design standpoint. One of the most impressive in this jam for me, possibly number one depending on how long you spent on it.
(PS: Thanks for rating my game as well :D)