I don't know how Dregg survived the black hole explosion but this is why I never thought Dregg was destroyed in Divide And Conquer. If he could survive the Dreggnaught explosion in the previous episode, why couldn't he survive the Krang body explosion, not to mention he had his extra exoskeleton and he didn't have it in the 2nd to last episode.
This is a lot like when AVGN reviewed the TMNT 3 movie when he thought