91! This is truly amazing, no other game managed to get me into such a state of flow yet. Here are my suggestions:
- More varied sounds when winning with cards - I'd especially like if you added streaks to make being good even more satisfying (also, the sound got a bit repetitive after a while). It would be nice if there were some mild visual effects - maybe even the colors inverting - as a reward for a certain streak.
- More challenging game modes (possibly, if you figure out how to make them) - more card columns? More card options (like the version with the lizard and spock)?
- A slightly higher difficulty curve - there was a moment when I had already learned the basic gameplay, but it was still a tad too easy, and only then got challenging. Maybe if you do very well near the beginning, cards start to come faster?
These are nitpicks; I gave you 5 stars for all categories. You really impressed me with those animations and that in-game tutorial - such a pet peeve of mine!