I also got to play this as a judge, here are my thoughts:
Overall I found this a very enjoyable puzzle game. I do wish you would remove the misses though from the game as I had a series of 3 rounds just go miss miss miss miss miss miss. Maybe it was bad RNG though, but still I think given the puzzle nature of the game removing misses would add to the game. Also I do wish leeches just stayed dead, considering we got limited health and healing items.
Except for those little suggestions though I have nothing else to suggest. The game was fun to play and I hope you do expand on it. And congrats on getting to the finals of the IGMC!