Cyber Troopers Virtual-On MARZ (電脳戦機バーチャロン マーズ, Dennō Senki Bācharon Māzu) is a 2003 3D mecha action-adventure game developed by Hitmaker and published by Sega.

Some stores in North America, expecting poor sales, only sold the game to those who reserved it.

Shady corporations have deployed giant robots called Virtuaroids to cause chaos around the planet for their nefarious gain.

As part of the Marz Special Investigation Unit, the player must take control of their own robots (armed with a variety of explosive weaponry) and lay waste to the Virtuaroid enemy in battle.

Battling their way through hordes of Virtuaroid armies, the Marz Special Investigation Unit must find out who this shady corporation is and end the chaos on Mars, once and for all.

Fallen teammates can be given half the other's life gauge through the "rescue tag" maneuver, and the first pair to fall loses the round.

"Rose Trio" Cyphers: They are female VRs the player fights during some missions on Mars and Earth.

The pilots of the Special Virtuaroids are taken from novelizations of the Virtual-On franchise; such as One Man Rescue and Fragmentary Passage.