Thanks a lot for playing! Mary was actually the last character to be added (and also softlocks you if 2 are placed next to each other, oops), although I never found her to be too useful in my own playthroughs I'm really glad that someone else did, creative utilization of the characters was a large part of the game and I'm glad to see we succeeded. We actually did make a hit sound, but I guess it was never implemented. Glad you enjoyed the game!