arrow keys and z to do things. dodge the weegees and if you touch one of them then you lose health. you are being as the heart to dodge the weegees and heart is basically your soul. when you beat weegee and you want to battle him again and if weegee is not there when you want to fight him again then maybe press the green flag again.
Credit to Nintendo and Toby Fox NOTE:I did not make the music and idk who made it NOTE 2:Weegee's health is 350. No I'm serious