Really fun! Only complaints are that it's a bit unclear what to do at the start and you have to go back to the first level if you die.
Viewing post in UNDEAD DEFENDERS jam comments
Thank you! Yes, it could have a small tutorial, also there's a lot of stuff going on at the same time, so if it is your first playthrough it can be confusing. The going back to the first level is as intended, because the game is really short (only 5 levels) the player should play many times until they master the mechanics. But to remedy this I am thinking about adding a "custom game" option, so you can customize the way you play the game (hearts, summon level, upgrades and game level), so I do have this in mind.