YMMV / Teenage Mutant Ninja Turtles 2003 S 3 E 14 The Darkness Within

• Complete Monster: The "Necro Monster" is a creature who arrived on a meteor and proceeded to act as The Corrupter. Among those corrupted was a C.F. Volpehart, who the creature used to wipe out a native tribe who couldn't be corrupted; Volpehart was forced to be the creature's immortal servant. The creature has been doing this for centuries. In the present, when the Turtles must rescue their young friend Angel's older brother, they see thousands of pods of the creature's victims. The creature also tries to use his methods of Mind Rape and I Know What You Fear on the Turtles, before Leo manages to defeat the creature.