"SQUARE UP", a song contributed to the Breakout Edition expansion by American electronic musician Jamie Paige, prominently references her 2022 song "(:women_wrestling:)" (itself later included in UNBEATABLE - THE JAMIE PAIGE CONTENT COMPANION, the game's first paid DLC pack). Not only do both tracks utilize fistfight imagery as a metaphor for love, but "SQUARE UP" also features multiple lyrical callbacks to its predecessor. The line "But there's a bullet kept inside my zone" references the "(:women_wrestling:)" line "I keep a bullet with your name inside my zone", and the "SQUARE UP" lines "Back to back / Beat some ass" are directly sampled from the 2022 track. The callbacks to "(:women_wrestling:)" are furthered in the music video for "SQUARE UP", two scenes of which feature illustrations of Gumi wearing the same outfit from the 2022 song's cover art. Both the illustrations and the "(:women_wrestling:)" cover art are additionally done by the same artist, Bearvamps.

These ties are further amplified in UNBEATABLE - THE JAMIE PAIGE CONTENT COMPANION, where purchasing both it and the Breakout Edition unlocks "SQUARE UP [SYNTHETIC]", a remix featuring earlier versions of Gumi and Kasane Teto's voice banks. This rendition directly samples additional lines from "(:women_wrestling:)" both after the second verse and during the outro.