The Ninja's Curse / Hal T. Neander Mona the Vampire : Season 2 Episode 8

A) Charley got a cool new weapon from his aunt, unfortunately it is cursed and a ninja's ghost bothers whoever uses the weapon. B) There's a new kid at school, Hal T. Neander, and Angela likes him very much. But what she doesn't know is that he is a real prehistoric kid!