#138 - Omanyte #139 - Omastar #140 - Kabuto
Diamond/Pearl
Pokemon #139 - Omastar Pokemon #139 - Omastar (Shiny)
Male and Female
Platinum
Pokemon #139 - Omastar Pokemon #139 - Omastar (Shiny)
Male and Female
HeartGold/SoulSilver
Pokemon #139 - Omastar Pokemon #139 - Omastar (Shiny)
Male and Female
Black/White/Black 2/White 2
Pokemon #139 - Omastar Pokemon #139 - Omastar (Shiny)
Male and Female
X/Y/Omega Ruby/Alpha Sapphire
Pokemon #139 - Omastar Pokemon #139 - Omastar (Shiny)
Male and Female
Sun/Moon/Ultra Sun/Ultra Moon
Pokemon #139 - Omastar Pokemon #139 - Omastar (Shiny)
Male and Female
Sword/Shield/Pokemon Legends: Arceus
Pokemon #139 - Omastar Pokemon #139 - Omastar (Shiny)
Male and Female
 
Pokemon Information
Generation: 1 (FireRed/LeafGreen) Gender(s) Available: Male/Female
Generations:1st - 7th
Type(s):Rock Water
Evolution Chain
Pokemon #138 - Omanyte Pokemon #139 - Omastar
 
Pokedex Entries
Diamond It is thought that this Pokemon became extinct because its spiral shell grew too large.
Pearl
Platinum
HeartGold Apparently, it cracked SHELLDER's shell with its sharp fangs and sucked out the insides.
SoulSilver Once wrapped around its prey, it never lets go. It eats the prey by tearing at it with sharp fangs.
Black It is thought that this Pokémon became extinct because its spiral shell grew too large.
White
Black 2
White 2
X Its tentacles are highly developed as if they are hands and feet. As soon as it ensnares prey, it bites.
Y Once wrapped around its prey, it never lets go. It eats the prey by tearing at it with sharp fangs.