Level X

Reberu X (レベル3) is the enhanced fighter form of the Ex-Aid Riders, which is accessed through the use of a level X Rider Gashat at the same time as their normal Gashat, Level X forms are far superior to the other forms.

Level X can be accessed by a Level 1 Rider activating the level X Gashat, closing the Gamer Driver's cover inserting the Gashat, and then opening the cover again.