S-Ko, the ghost who possesses Zappa throughout the game, is a homage to the Japanese horror film "Ring," bearing a striking resemblance to the antagonist, Sadako Yamamura. Zappa's Destroy move also shows a "video tape" that bears resemblance to the one from the film.
Contributed by TailsFiraga
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The character Slayer has several moves named after songs by the rock band Queen. These include "It's Late", "Under Pressure", and his Instant Kill, "All Dead".
Contributed by TailsFiraga
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The Korean release of the revision "Guilty Gear XX #Reload" has a different soundtrack than the original Japanese release. The Korean soundtrack was composed by Shin Hae Chul, formerly of the band N.EX.T.
Contributed by TailsFiraga