Felt very responsive to my in-game actions. Selecting cards, recalling cards, seeing the little character spin when you use a card, sound effects, it was a pleasant experience and I understood every action my keypresses did in the game.
Very snappy gameplay, applying snapshots to objects is done virtually instant. Very nice feeling seeing the animations play out when you apply cards to them.
Tutorial is easy to understand, and does a splendid job of teaching me how to play.
You accounted for the player potentially being able to crushing themselves into the ground with one of the rotating objects. Very nice collision checking. Thought I could maybe glitch myself under the map :)
Little difficult to get used to controlling multiple cards (ex: deselecting at the correct time on the rotating hole sections can be tiny a bit tricky with how quickly they rotate), but it's not too bad.
Good work!