how does the multiplayer work? do both people just have to be on the itch.io site and it will connect automatically?
Yep, that's right! (If you can't find anyone - you could get an idea for how the game works by opening the game in 2 tabs).
I have also just added a trailer showing the gameplay
I think next time I'll make sure to add single player as well!
the physics have a great feel, I hope I can get someone else to play it with me.