|This article is about a/an object in Kamen Rider Decade.|
The chip was stored in Shouichi Ashikawa's old locker where it was found by Daiki, who took it. Yusuke demanded the chip back, but during the struggle, Toko destroyed the chip by blasting it to bits and a disappointed Kaito left.
Presumably, the G4 Chip is related to Kamen Rider G4, who originally appeared in Kamen Rider Agito: Project G4, fitting in with the theme of Daiki's treasures being related to the movie versions of the Heisei Kamen Rider Series. However the World of Agito is not shown to have its own version of Kamen Rider G4, and the chip is presumed to contain project data or a work in progress version of the G4 suit's A.I.