Kota Ibushi is one of the best professional wrestlers alive. He can launch himself from the top rope onto someone outside the ring from a height that makes most people's knees hurt just watching. He has absorbed moves that ended other wrestlers' careers and kept going. His physical control and spatial awareness are exceptional across everything he does.
He also plays Rock Paper Scissors with the kind of focused deliberateness that you don't usually see outside sanctioned tournament play. Video of Ibushi playing circulates in RPS circles specifically because his mechanics are clean in a way that casual players never bother to develop: committed throw, clear reveal, no ambiguity in the hand shape, consistent cadence discipline. The focus is identical to what he brings to his wrestling work. The man does not dial anything in.
The case for Ibushi as the best RPS player ever is partly tongue-in-cheek but not entirely empty. There's no formal record of his tournament results, and the matches that get shared online are social games rather than sanctioned events. The WRPSA tracks competitive results, not celebrity exhibition games. But the quality of his throws — the timing, clarity, and physical control — suggests someone who treats even casual competition seriously enough to have actually thought about it. That's rarer than it sounds.
The honest answer to whether he's the best ever: we don't know, and the framing probably can't be answered that way. Ibushi's documented record is in professional wrestling, where his credentials are unambiguous. At Rock Paper Scissors, he looks sharp. Whether sharp translates to best ever in any sport depends on the competition pool, and Ibushi's RPS career hasn't been tested against the people who specifically train for it.
What's genuinely interesting is the category he represents: elite athletes who bring their professional focus to a game that doesn't require their physical gifts. The pattern recognition carries over. The ability to stay calm and execute under observation carries over. The habit of preparation carries over. Ibushi would probably be a better-than-average tournament entrant. He'd also probably run into someone in round three who has spent two years specifically studying conditional response patterns and knows exactly what an athletic competitor with clean mechanics is likely to throw under pressure.