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BlazBlue Cross Tag Battle is a crossover fighting game released in 2018 by Arc System Works, bringing together characters from BlazBlue, Persona 4 Arena, Under Night In-Birth and RWBY, the animated series by Rooster Teeth. That four way mix is the joke behind the sound's title, which treats a crossover as something you trigger in an emergency. Short clips naming that premise spread easily on soundboards because the phrase works even without gameplay attached, so creators reuse it whenever separate series, casts or game rosters meet in one edit or post.
About this sound
Press in Case of Crossover sound effect from BlazBlue Cross Tag Battle, the BBTAG fighter featuring RWBY, used for anime and gaming reveal edits.
This short clip is built around the idea of breaking out a crossover moment, tied to BlazBlue Cross Tag Battle and its mix of fighting game and RWBY characters. It lands as a quick, punchy announcement style sting that signals something unexpected is about to join the scene. The humour comes from treating a crossover like an emergency measure, as if it has been kept behind glass until the exact right second. Played over a normal clip, it instantly reframes the next entrance, team up or character reveal as a dramatic and deliberately over the top event.
