Is there an official source calling this ability "Rider Syndrome"? In all instances of this move that I've seen, the captions have translated this as "Rider Synchro".
- https://www.kamen-rider-official.com/zukan/characters/1208
- https://ja.wikipedia.org/wiki/10号誕生!仮面ライダー全員集合!! TokusatsuKami (talk) 23:07, 30 January 2024 (UTC)