Robot Junior is a mecha piloted by Kabuto Shiro in the manga and anime Great Mazinger. The robot resembles a little boy in a baseball jersey, and the "docking vehicle" that Shiro pilots to connect with it is shaped like a baseball cap. Robot Junior's special attacks include "Iron Batter", a parody of both Mazinger Z's "Iron Cutter" special attack and Great Mazinger's "Mazinger Blade" special attack, in which an iron baseball bat shoots out of Robot Junior's shoulder, which Robot Junior can catch and wield as a weapon. In Super Robot Wars D Robot Junior and Boss Borat have Combination attack where Robot Junior take the bat and Boss Borat holds out a Tee ball for Robot Junior to hit but misses and Hits Boss Borats head off turning it into a Projectile.

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