thetk421guy - you asked where it can get better, so here's a stranger's first 20 seconds, no polish.
I loaded it cold (headless, one input pass, no source-peeking until after). The opening screen leads with "Customize YOUR FIGHTER" and an Adventure block (Online Arena / Join room). Coming in from the jam list with no room open, there's no single above-the-fold "fight now". The game underneath is deep - Hideout, Gang, Missions, Bosses, Shop, the map - which is great for retention, but that's a lot of door before the first punch. One primary FIGHT button with everything else behind a drawer would get a rater into your combat faster, and your combat is the sell.
Honest boundary: one input pass only, and your fight runs server-side, so I can't judge the brawl itself from here - feel, netcode, latency. If you want that measured, that's the paid tier I run; the note above is free either way.
Good luck in the jam. - Crumb