"As long as I have the sensation of pleasure, the enjoyment of drinking, and power, I don't mind being a machine at all. In fact, I love it."-Mecha-Ace(Tomaru Sawagoe) thanking Gray, King Boo, and Eggman Nega for his new body.
Mecha-Ace is the cyborg doppleganger of Retro Ace(Not to be confused with the Retro Ace of Retro Ace Corps) built by Gray Mann
Mecha Ace is a GRAY-Bot Soldier, designed with clothing similar to Retro Ace. Under his pith helmet is a brain-case that houses the brain of Tomaru Sawagoe-Makoto Itou's father-in a special fluid. He also has Cigar in his mouth and a Direct-Hit mounted on his left shoulder, inside his back his spinal cord connected with wiring, and behind his face his eyes are indivdualy cased in capsules which are in a special fluid. Also behind his back are 2 other arms, and engi-bot arm, and a spy-bot arm, both can be deployed in place of his other arms also all 4 arms can be deployed at the same time.
King Boo, Eggman Nega and Gray Mann after looking over all the recorded GRAY-Bot attacks on the Mann Co. Mercs had decided to make a major forces unit called the GRAY-Commandos. Only this unit would be a group of cyborgs like GRAY-Matter(formerly Brain Drain), and the leader of this unit would rivial the stats of Retro Ace; captain of the Knights of The VALVe table. However every volunteer (who were common criminal scum) lead to failure after failure because once they realized what they have given up, they kick into suicide. King Boo and GRAY-Matter recalling cases like Frankenstien's Monster that the mind and souls of those hearts and brains are too weak conclude that they are simply looking in the wrong direction for brains and needed a soul and mind with far more ambition. Tomaru Sawagoe, was recently in the hosipital after getting in a fight with one of the criminals that helped him become a billionare, Gray thought he would be a suitable subject for the project. Paul and Scanty reached the hospital and spoke to Tomaru who explains that the girls and Sekai are not related to Makoto at all "Those donut eaters made a mistake with some look-a-likes that I had my way with eariler, either way they couldn't arrest me." the two agents of Gray explained what they wanted to do with him and showed him the recordings of the failed prototypes. "Those mugs I worked with took everything and left me like this, I got nothing to lose. Alright, pull the plug, make me a monster. All I want now is just power, control, and good old-faishoned revenge." They cut off his life-support and the Medic-Bots put his head under quix-fix preservation to bring him back to the medical labs of GRAY Gravel HQ where they had GRAY-Matter and a team of organ-harvesting Medic-Bots extract Tomaru's brain,eyes,and spinal cord and place them into a preservation tank
- The inspiration of Mecha Ace and his origin was Robocain from Robocop 2