|Mountain Warrior Information|
|Armor||6 inches Intractium|
|Power Source||Twin Power Cores|
|Weapons||Gatling Laser Cannon|
|Status||Disassembled and likely to never be built again due to the Grand Titan's destruction|
After Hikaru's Stealth Hunter and Takeshi's Grand Titan were both badly damage in combat, they were sent to the repair bay, where Ryo tried to get them working again. Hikaru asked why they haven't got a Battle Machine with the armor and strength of the Grand Titan and the speed and accuracy of the Stealth Hunter. This made Ryo think of building a battle machine together with the working parts of both damaged battle machines.
Ryo started with building the Mountain Warrior but was interrupted by Sensei Keiken who thought that two battle machines seperately would have more of a chance to fight the robots and ordered Ryo to put the Stealth Hunter and Grand Titan back together. Ryo didn't follow Keiken's orders and finished the Mountain Warrior.
When Ha-Ya-To was battling the robots who launched a surprise attack, the Mountain Warrior appeared and forced the robots to retreat. After this the Mountain Warrior was disassambled, but Ryo added modular circuits to the Grand Titan and Stealth Hunter, if they wanted to build the Mountain Warrior again in a hurry. Though due to the destruction of the Grand Titan, it's unlikely that it will ever be constructed again.
The Mountain Warrior was created when Ryo, seeing that both battle machines were heavily damaged, used parts from the Grand Titan and Stealth Hunter to create a battle machine. He wanted it to have the firepower and armor of the Grand Titan, and the speed and flying abilities of the Stealth Hunter.
- Exo-Force Online Comic 4: A Fierce Fight (Hologram)
- Exo-Force Online Comic 5: Ryo´s Experiment
- Exo-Force Online Comic 6: Training Day (Flashback)
- Exo-Force Online Comic 7: Dark Storm Rising (Flashback)
- Exo-Force Online Comic 19: Secret Strike (Flashback)
|Human Battle Machines|
|Deep Jungle Era:||River Dragon | Assault Tiger | Chameleon Hunter | Hybrid Rescue Tank|
|Golden City Era:||Cyclone Defender | Blade Titan | Sky Guardian | Golden Guardian | Aero Booster/Blue Falcon | Blazing Falcon | Mini Rocket Speeder | Sky Titan|
|Split Mountain Era:||Uplink | Grand Titan | Stealth Hunter | Gate Defender | Supernova | Silent Strike | Mobile Defense Tank | White Lightning | Gate Guardian | Mountain Warrior|
|Robot Battle Machines|
|Deep Jungle Era:||Arachnoid Stalker | Dark Panther | Jungle Thrasher (Cancelled) | Storm Lasher|
|Golden City Era:||Claw Crusher | Iron Condor/Iron Condor II | Shadow Crawler | Sonic Raven | Combat Crawler X2/Iron Condor II | Mobile Devastator | Iron Crusher|
|Split Mountain Era:||Sentry/Sentry II | Fire Vulture | Thunder Fury | Sonic Phantom | R-1 Rammer | Venom I | Bridge Walker | Striking Venom | Raging Storm|