i liked it. i felt it was kind of bugged ( i played the web version) sometimes i got no upgrades. sometimes too much. sometimes enemies spawn when there was no wave active. upgrade pop ups appearing mid combat i even felt that i would probably die because of a bad timed pop up. but it had good progression. movement felt a little bit off probably because of the background
Yeah, I think the idea of the multiple card pop-ups could have been conveyed better. It's just a small display at the top of the screen that shows how many card choices you'll get at the end of the round, and the end of the round can end short if you kill every enemy before a new one spawns in. That's the only bug, but the other things you mentioned are definitely an extension of that design flaw.