Welcome to undertale battle sim. Choose your oppenement: -sans -papyrus -chara -flowey/omega flowey -spamton/spamton neo -frisk -VHS sans -Prunsel -froggit -toby fox -dummy (aka. Practice mode) -mad dummy (not practice mode) -napstablook -mettaton/mettaton NEO -toriel -temmie -sans with a freaking gun -disbelief papyrus -asgore -asriel -error sans -boss rush (every single enemy in order)