Krang before he turned into a brain?

[Original TMNT Cartoon Fan]

Originally Posted by FredWolfLeonardo

In my opinion, Krang started out as the brain creature shown in "Four Musketurtles" before growing a body over his lifespan just like the clones in "Invasion of the Krangzoids.", until he was stripped of it by subprime and banished to 2D Earth.

Maybe Krang used mutagen for that. It doesn't say he ever got a lizard-body. Just look at the Shredder clones in other TMNT versions having four arms. Shredder himself never get that.