Henshin is a Japanese word for transformation, widely associated with tokusatsu heroes and anime characters who change form before battle, and zombie henshin edits apply that same reveal structure to an undead form. On soundboards and in short-form video, the term is used for dark, monstrous power-ups rather than heroic ones, giving creators a ready-made cue for a character who returns changed. Its appeal comes from that contrast: a familiar transformation moment turned eerie, dramatic and instantly recognisable in a meme or gaming edit.