I liked it. Only played game mode A and haven't touched the procedurally generated one yet.
I could definitely see the bonuses for sequential cards and card sets making for some pretty interesting score attack. Puzzling out what symbols did was fun too and the overall core of moving, dodging and collecting works well.
The sound for pausing/unpausing is a little loud.
I felt like it was a little jarring when the player touches a swinging rope and is snapped to the end of the rope.
I think I ran into one bug where after dying to the leftmost spikes, the game wouldn't transition to the game over screen. Unfortunately, I was not recording and have been unable to reproduce it.
Good demo. Keep it up!