really cool entry! it was quite fun to learn how to get a highscore, I found the best Strat to be the simplest, keep skull count low. My best was 20 rounds.
The little labels on the side are perfect for this kinda game so I could figure out how it worked fast, so really good work on that.
The game is kinda RNG heavy right now, and having turn 1 always be a hit is kinda sad, I wish there was more times I would get + hp or 0. But then again the health draining is how the game ends so guess that would be too much huh.
The sounds and graphics are quite pleasent, I would like to see some animation tho. Perhaps damage numbers that appear over the skulls every turn (maybe green numbers when you get HP) just for some more clarity. Maybe a impact when destroying skulls? (Obviously I minor thing, you used your jam time very well!)
Really good entry! had alot of fun