The third series of figures, these monsters were only available through Nabisco Shreddies and Big Boy restaraunts. The colors are very similar to series 2 (pink, blue, orange, green), but they also had yellow and purple at select Big Boys. The Unknown Monsters are presumably a part of Series 3, though it is unsure if they were ever made into actual figures. The Monster in My Pocket video game also came with a secret monster, who is considered to be part of series 3.
- 073 Leviathan - A gigantic sea serpant with rows of razor sharp teeth.
- 074 Abominable Snowman - Himyalayan; A huge, white, ape-like being, that has lived for centuries.
- 075 Anubis - Egyptian; Jackal-headed protector of the dead.
- 076 Amphisbaena - African; two-headed creature who never sleeps.
- 077 Centaur - Most famous Greek monster, half-man and half-horse.
- 078 Orobas - An oracle, he can reveal lies and tell the future.
- 079 Siren - A bird-woman whose sweet song is deadly.
- 080 Jimmy Squarefoot - An evil humanoid with a pig's head.
- 081 Blemmyae - -