- Voice actor: Eric Stuart (both English and Japanese)
Omastar has a heavy, pale yellow, helix shell dotted with spikes. It has a sky blue body with ten tentacles, four of which are longer than the other six. Omastar has a squid-like beak and eyes with vertical-line pupils. Its height is 3'03" and weight is 77.2 lbs.
Omastar, unlike Kabutops, is far more defensive. While Kabutops prefers to slice prey apart or swim after them, Omastar does not. Omastar has a high Special Attack suggesting that it prefers waiting for prey to come near it so it can attack. It is not as fierce as Kabutops and probably does not move as much either, preferring to stay rooted to a spot, waiting.
- Main article: Pokémon food
Pokédex information indicates that Omastar would eat shelled creatures in the wild by cracking open their shells with sharp fangs and sucking out the insides.
Omastar first appeared in Attack of the Prehistoric Pokémon, alongside all the other Generation I Fossil Pokémon. They were sleeping under Grampa Canyon until a dynamite blast woke them up. The Rock/Water-type-type Fossil Pokémon chased Ash Ketchum,Tails the Fox, the Eggman Empire and Team Rocket until Aerodactyl showed up and scared them off.
An Omastar appeared in Dealing With Defensive Types!.
Omastar, Spiral Pokémon. The evolved form of Omanyte. This extinct Pokémon is believed to have used its sharp fangs to break through the shells of its prey in order to feed.