Name: Mechanic Guy
Gender: Male
Age: 25
Race: Shy Guy
Appearance: He wears gray (like the Shy Guy in Mario Super Sluggers), his mask always has a mad face, and wears a jetpack
Likes: Merlevil, Taboo, Kemak, Spike
Dislikes: Mario, Psy Guy, Yoshi, Luigi, Bowser, Dimentio
Favorite Mario Game: Yoshi's Island DS (likes Big Guy the Stilted)
First Appearance: Mario and Psy Guy: The Ten Pure Stars
Hobbies: Likes to stay in his lab and build robots for himself and his buddies
Abilities: Uses his jetpack to move, uses his tools as weapons
Quote: "Face the wrath of my Shy Bot!"- Mario and Psy Guy: The Ten Pure Stars

Personality: Mechanic Guy is a Shy Guy that is sad when his robots are destroyed by Mario. He gets so mad that he builds bigger and better robots so they can take down Mario and his friends.

History: Mechanic Guy is a Shy Guy that used to live in Shy Guy's Toy Box. Before Mario came, General Guy ordered him to build a tank for him so he could take down Mario when he got there. Mechanic Guy rushed off to his secret lab in the Toy Box and quickly built the tank. He took it to General Guy and got approval. It was just in time, too, because Mario had just broken through the toy block wall. Mechanic Guy hid so he could see how the tank did. After the Shy Guy brigade fell, General Guy attacked Mario with his tank. Mechanic Guy wanted to see how well the light bulb on the tank would work, but he never got the chance because Mario got some help from Watt, who used her own electricity to break the bulb. She also used it to penetrate the tank’s defense. In the end, Mario and Watt won and all the Shy Guys ran off. But Mechanic Guy still hid and watched Mario grab the Star Spirit Muskular and leave with him. When he left, Mechanic Guy came out of hiding and looked at the pieces of his tank. This was the first time any of his machines had failed him. He slowly left the Toy Box when everyone in Toad Town was asleep. He left town with his tools and said to himself, "I have failed my general..." He found a cave somewhere on Pleasant Path. Three days later, Mechanic Guy was found by Merlevil. Merlevil had been watching him build. He said he could build bigger and better things if he tried. Mechanic Guy then asked if he could join Merlevil. Merlevil let him and now Mechanic Guy has vowed revenge on Mario for destroying his tank for General Guy.