2 episodes I forgot about

[Coola Yagami]

These 2 always escape me. First there was an EP where I believe Metalhead was a random prop for whatever random reason? Then I could have sworn there was an episode where Groundchuck and Dirtbag returned but IDK if that was something I made up in my head cause other than that I can't honestly remember what the episode was about????

[Original TMNT Cartoon Fan]

Metalhead debuts in The Making of Metalhead, and vacuum cleans the Turtle Lair in Big Bug Blunder

Groundchuck and Dirtbag debut in Planet of the Turtleloids but return in Escape from the Planet of the Turtleoids.