The Maximum Gamer (マキシマムゲーマ Makishimamu Gēma) is a support robot used by Kamen Rider Ex-Aid. It is summoned with the Maximum Mighty X Gashat, and combines with Ex-Aid by pressing the Gashat's button to form Kamen Rider Ex-Aid Maximum Gamer Level 99. While combined, Ex-Aid can eject himself from Maximum Gamer to fight as Action Gamer with the power of Level 99, leaving Maximum Gamer immobile until Ex-Aid orders it to attack.