Rock and Roll, a genre of music enjoyed by many has been a key point for these characters today but unlike other rock and rollers these guys use music as a type of weapons. The main weapon in question for these rock and roll warriors is the almighty guitar which have various abilities depending on the person using it.
Marceline the Vampire Queen (Adventure Time)
Demyx the Melodious Nocturne (Kingdom Hearts)
Eddie Riggs leader of the Ironheades (Brutal Legend)
Scott Pilgrim the boy that took on his girlfriends 7 evil exes (Scott Pilgrim vs the world)
I-No the witch servant of That Man(Guilty Gear)
Ember Mclain the hard rocking ghost girl (Danny Phantom)
Lord Raptor the undead Ozzy Rocker(Darkstalkers)
So which rock and roller will out rock the other?