Hello fellow-reluctant sword enthusiast! I was browsing the list of jam submissions and thought yours concept sounded similar to ours, but it's delightfully very different! I like the arcade cabinet aesthetic a lot. Makes for a very simplified control scheme and I could see something like this sitting in the corner of the local bowling alley.
It seems like after you pick a level, theres a silent timeout before it begins. An action to begin on player input would be good. The game just sort of starts without warning, making it hard to jump on the appropriate WASD key right away.
Fun concept, game sibling!