Simple, yet fun game. I think there should have been some kind of logic on what beats what (maybe there was and I'm just too dumb to see it). It was just trial and error.
I'm glad you enjoyed! I don't want to spoil it, but there is a logic. In the end we didn't have the time to make it more obvious with in-game effects, but we will improve that. Think about what the weakness of each monster would be!