So, his lycanthorpy is SO SENSITIVE that any picture of the moon or the sun can change him into a werewolf or human? That sounds pretty unlikely.
Also, the girl being kidnapped looks to be a combination of the Daphne near-miss and Fred disappearance in the Scooby-Doo intro.
So what's sadder-- Hanna-Barbera running a formula into the ground so hard it leaves a crater or a completely different animation studio (Ruby-Spears, in this case) making a living by ripping off Hanna-Barbera?