The grey Bunny Isabelle represents the Arcade Bunny, a long-eared bunny wearing dark-colored clothing who appears as the Assist Trophy enemy.
The stage and music track reference how Nintendo Badge Arcade is a utility game for the Nintendo 3DS.
The Franklin Badge item references the badges the player uses the claw to grab in Nintendo Badge Arcade.
Other trivia:
This spirit's Support type references the Arcade Bunny's appearance as an Assist Trophy in the Super Smash Bros. series.
This spirit's Strong Throw ability references the claw machine in Nintendo Badge Arcade, which can be used to grab, move, and possbly throw the badges around the area.
