Mikey

Season One Episodes

 * "Cold Case" (first appearance)
 * "Hero VS Villains"
 * "Remote Control"
 * "Call of Duty"
 * "Elementary"
 * "Framed"
 * "Attack of the Clones"
 * "Deceive and Conquer"
 * "The Secret Files"
 * "Return of the Bowser Jr."
 * "The Army of One"
 * "Flight of the Koopalings"
 * "Planet 51"

Season Two Episodes

 * "Will Gets a Work"
 * "The Academy"
 * "Parental Bonding"
 * "Secrets of the Lost City"
 * "Breakout"
 * "Secret Saturday"
 * "The Forces of Evil"
 * "Battle to Rescue"

Season Twenty Episodes

 * "The High School Planet" (final appearance)