Really cool game! I love the fact that you have simultaneously created an interesting difficulty curve, an interesting set of decisions to make, and a unifying mechanic all in one, that one is the hearts as timer, ammo, and health. Because the game has you starting off with plenty of health and ammo, it's easy at the beginning, and difficult over time, unlike other roguelikes that have it as a set line of passage. The art is really good. Everything was juicy.
Amazing game!