In the first generation of Pokémon (Red, Blue, FireRed, LeafGreen), you can choose Bulbasaur as your starter or he can be your rival's starter. Even if you don't choose Bulbasaur as your starter, you can catch a wild one.
In Yellow, you can get a Bulbasaur from a girl in Cerulean City if Pikachu's Happiness is high enough.
In Gold, Silver and Crystal, you can get a Bulbasaur by a Time Capsule.
In Ruby, Sapphire, Emerald, Black 2, White 2, Omega Ruby and Alpha Sapphire, you can get a Bulbasaur by making a trade.
In Diamond, Pearl and Platinum, you can find a Bulbasaur in The Pal Park.
In HeartGold and SoulSilver, you can get a Bulbasaur as a reward from Professor Oak after defeating Red.
In Black and White, you can get a Bulbasaur in Poké Transfer Lab or in The Dream World.
In X and Y, you can get a Bulbasaur as a gift from Professor Sycamore.
In Sun and Moon, you can have a Bulbasaur with transfer.
In Ultra Sun and Ultra Moon, you can find a Bulbasaur with Island Scan.
In Let's Go Pikachu and Let's Go Eevee, you can find a Bulbasaur in Viridian Forest.
In Sword and Shield, you can have a Bulbasaur with a trade or as a gift from The Master Dojo.
Super Smash Bros.
Super Smash Bros. Melee
Bulbasaur appears as a collectible trophy.
Super Smash Bros. Brawl
Bulbasaur returns as a trophy again.
Gym Leaders, Trial Captains, and Island Kahunas
Elite Four, Finalists, and Quarter Finalists
Groups and Organizations