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The Scientist is a minor character that isn't featured much, and he makes only one appearance. He tells Newbie the location of the portal to Block World.
In Area 52, the scientist is hiding from the enemies in the U.F.O located in the hangar. After Newbie kills every enemy in the area, he comes out of the U.F.O and yells "Don't Shoot Me!," then tells Newbie the location of the portal to Block World. He doesn't appear anymore in the game after that. He probably left Area 52 once Newbie left and reaches School.
He's a man with brown hair. He wears a pair of glasses and a white lab coat. Like all other characters, he is blocky.