IGN
This week's TMNT was somewhat fillery in that it didn't really advance the Turtles' search for the final black hole generator fragment. However, it did give us one of the more notable appearances from Lord Dregg -- and Mona Lisa for that matter -- resulting in a fun, action-packed and Raphael-focused episode. It also served as a strong lead-in to next week's adventure, which will bring the Turtles to the third and final fragment of the Heart of Darkness.