|This article is about a/an rider in Kamen Rider Decade.|
- "I'm sorry, I'm sorry, I really am sorry!"
- ―The police officer apologising for his awry neutralizing of a Gurongi.[src]
This unnamed police officer in the AR World of Agito was drafted to use the Kamen Rider G3-X suit after the disappearance of its original user, Shouichi Ashikawa. As G3-X, he dealt with the Gurongi Me-Bajisu-Ba who was fighting the police, using the GX-05 Cerberus's Gatling Mode to blast the monster to bits, as witnessed on the TV news in the Hikari Studio when it arrived in the World of Agito. Though he successfully neutralized the Gurongi he faced, the use of the G3-X suit gave him a great deal of physical stress and the resulting collateral damage resulted in criticism of SAUL from the media. Telling Toko Yashiro that he couldn't do it anymore, the police officer walked out, forcing her to search for new candidates for G3-X which came in the form of Yuusuke Onodera (Kamen Rider Kuuga) and Daiki Kaito (Kamen Rider Diend).
Kamen Rider G3-X
- Height: 192 cm
- Weight: 176 kg
- Punching Power: 2.5 t
- Kicking Power: 7.5 t
- Maximum Jump Height: 20 m
- Maximum Running Speed: 100 m per 8 seconds
- Vision and Hearing: Approx. 15 km
- Defense: 10/10
From what was seen during Shouichi Ashikawa's past, the A.R. World version of G3-X was also modified from the standard G3 system using G3's diagnostic data. It is unknown if it has the same A.I. installed as the original G3-X, though the existence of the G4 chip suggests that this may be the case.