Thanks, Steven!
Thanks for letting me know about the fullscreen button, I turned it off in Itch.
I agree with you 100% on P1 having the advantage. It's something I was aware of but didn't have time to think about an elegant solution for. A few ideas that crossed my mind. The easiest was swap the starting player between rounds but that would mean in any "best of <odd number>" rounds one player will still have an advantage. Another was to have a skill-based mini-game to get the match started but designing a game within a game was going well beyond the scope of the game jam haha. So yeah, still no good idea to solve this one!
Thanks for playing and taking the time to leave feedback. :)