I was upgraded as much as I could be and if I ever tried to hit no on rematch it would say I couldn't. To get past it, I had to go way back in save files to fight the ghost that attacked Danny's mom to get that extra experience to level up to defeat it. And now I am stuck again in ch 6 trying to fight the giant bear ghost thing where I get all these fight messages saying "nothing happened. 1, False, False , False True" after each time I attack. After this message appears, danny instantly tries to attack again, misses, and then gts hit for 90 hp by the bear. I would try to go back to fight any ghosts I've missed, but I'm pretty sure i fought them to this point.