Brock's Onix (Gym Heroes 21) - Bulbapedia, the community-driven Pokémon encyclopedia
Video Game Art Archive on Twitter: "#095 - Onix - from the guide of 'Pokemon Red & Blue'. @Bulbapedia @SUPER_32X https://t.co/Un54ti50Zj https://t.co/SXwCPKjU7Q" / Twitter
Onix (Pokémon) - Bulbapedia, the community-driven Pokémon encyclopedia
Onix (EX Team Rocket Returns 69) - Bulbapedia, the community-driven Pokémon encyclopedia
Onix (Duel 146) - Bulbapedia, the community-driven Pokémon encyclopedia