Is there a guide about some character's route? I'm currently stuck with red the plumber, I don't know what to do after finding his pants.
Red can help you acquire the key at the bottom of the pool without risking a tentacle monster transformation! Once you help him find pants post-TF, he's willing to help.
This is part of the escape/ 'good ending' pathway but it isn't yet implemented because the final areas (beach, arcade, gardens) aren't done.