It's really simple you just need to press TAB on this title screen.


After pressing TAB it will open the main menu and your player 1 binds will work.(movement will be on WASD tho,
(WASD to move, U to confirm I to go back in the menu, TAB is for the in game menu, and you can NOT change it,the menu keys included).

the issue is, if you press the ENTER key the game will start with player 2 controls because it's binded to player 2 controls,(most people press enter on title screens so it's pretty common to have this issue).
you just need to press one of the keys binded to player 1 on the title screen, that's it.

So just rebind your keys and have fun battling waifus.

YOU WILL NEED TO PRESS TAB( or any key binded to player 1 really) EVERYTIME YOU BOOT THE GAME