Question about south park best game evuh

I finished all quests in south park,i wrote in google side quests in south park and i saw a list.. finished them all, is there something else i can do? Because i started with a new class "mage",but i was hoping for something new,and i believe only the weapons and abilities and etc is different,but not and the story :c well I guess it would be too much of a deal if the dev's wouldve made diff. storry for each class lol,but anyway is there anything else i can do or i should just keep playing with the new class untill i finish everything with it too?