- XMines of Minos
- XMissile Command
- XMissile Command
- XMissile Command
- XMoon Patrol
- XMoon Patrol
- XMotocross
- XMouse Trap
- XMouse Trap
- XMr. Do
- XMs. Pac-Man
- XMs. Pac-Man
- XNexar
- XNight Driver
- XNo Escape
- XNo Escape
- XOink!
- XOutlaw
- XOutlaw
- XPac Man
- XPac-Man
- XPac-Man
- XPhoenix
- XPhoenix
- XPinball
- XPinball
Pitfall- Pitfall
Planet Patrol- Planet Patrol
Plaque Attack- XPolaris
- XPole Position
- XPressure Cooker
- XPressure Cooker
- XPrivate Eye
- XQ-Bert
- XR. HERO
- XRacquetball
- XRaiders of the Lost Ark
- XRaiders of the Lost Ark
- XRam-It
- XRevenge of Tomatoes
- XRiver Raid
- XRiver Raid
- XRiver Raid
- XRobot Tank
- XRobot Tank
- XRoc 'n Rope
- XScreaming