What a great game!
Alas there’s a game-breaking bug: I’m not able to enter an exclamation mark, so I can’t play Monster Mode. (Linux, tried both Chrome and Firefox, US-English layout).
Also, not as big a deal, but I wish the intro and between-rounds menu were navigable by keyboard. It’s a mild nuisance to have to reach for the mouse when the game doesn’t otherwise need it.
It’s a great concept, and the presentation is charming. I wish there were more like this!