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Ken Samejima (鮫島 拳, Samejima Ken) is a patient who suffered by the game illness he got from using Kamen Rider Chronicle Gashat.
History[]
He appears fighting with Parado as the Ride-Player. He, however, wasn't able to withstand Parado's attacks and nearly lost to him, only to be saved by Emu Hojo and Hiiro Kagami. Later, in CR, he expressed his anger to Emu because latter was hesitated to cure him - it was Poppy's Bugster Virus that infected the patient. When Poppy finally smiled thanks to Emu, Ken was cured of game illness.
Ride-Player[]

Ride-Player
- "Enter the Game! Ri-Riding the End!"
- ―Transformation announcement[src]
- Height: 198.0 cm
- Weight: 96.1 kg
- Ability Parameters
- Punching Power: 5.0 t
- Kicking Power: 9.0 t
- Maximum Jump Height: 25.0 m
- Maximum Running Speed: 100 m. per 8.0 seconds
Ride-Players are the "Kamen Rider" form used by civilians to play Kamen Rider Chronicle. To transform into a Ride-Player, a person must activate their Kamen Rider Chronicle Gashat, and press its button again to transform. In this form, all Ride-Players are equipped with the Ride Weapon, which can transform between a sword and a gun.
Appearances: Episode 28
Appearances[]
Kamen Rider Ex-Aid
- Episode 28: Beyond Your Identity
- Episode 29: We're Me!? (flashback; archive footage only)