The Professor is a unit original to Metal Slug Attack, first appearing in the Extra Ops titled "Black Future" (as a pre-acquisition unit, obtained by purchasing 10,000 medals). He rides within a modified Ring Laser Mecha, and primarily attacks by firing vertical rings at his opponents. His special attack summons a large circular buzz-saw, or if File:MSA Skill small +.png 4 is unlocked, two of them. When placed in the same deck, he and El Dorado form the "New Face II" team. This lowers their AP costs by 10%.