Nickelodeon All-Star Brawl contains multiple unused announcer lines - including multitudes of character names (including characters from Rocko's Modern Life and Jimmy Neutron: Boy Genius, which were not represented in the base version of the game), item announcement calls which (despite the narrator having used voice clips relating to the items) did not end up being used, all of the stage names (notably including alternate names for the Slime Time stage in the form of "Double Dare", "Double Dare Stage", and "Double Dare Extreme") and, perhaps most interestingly, lines relating to a shop feature where the player could buy outfits, characters, moves, and stages. The reveal press release for All-Star Brawl references the ability to "unlock advanced moves", which may be referring to this scrapped feature.