the game folder should contain a README file with the controls in it but if you want the controls here they are:
Start : Enter
Back: Backspace
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PLAYER 1:
movement: Arrow keys
"A"- Attack/join game : Right shift
"B"-remove player from lobby: Right control
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PLAYER 2:
movement:WASD
"A"- Attack/join game : Left shift
"B"-remove player from lobby: Left control
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EXTRAS:
Fullscreen toggle: Spacebar
QUIT: Escape key
Hope you have fun! :)