Bulbasaur

Red +2: A strange seed was planted on its back at birth. The plant sprouts and grows with this POKéMON.

Yellow +2: It can go for days without eating a single morsel. In the bulb on its back, it stores energy.

Gold / HeartGold: The seed on its back is filled with nutrients. The seed grows steadily larger as its body grows.

Silver / SoulSilver: It carries a seed on its back right from birth. As it grows older, the seed also grows larger.

Crystal: While it is young, it uses the nutrients that are stored in the seeds on its back in order to grow.

Ruby +2: BULBASAUR can be seen napping in bright sunlight. There is a seed on its back. By soaking up the sun’s rays, the seed grows progressively larger.

FireRed: There is a plant seed on its back right from the day this POKéMON is born. The seed slowly grows larger.

Diamond +7: For some time after its birth, it grows by gaining nourishment from the seed on its back.

X: A strange seed was planted on its back at birth. The plant sprouts and grows with this Pokémon.

Omega Ruby / Alpha Sapphire: Bulbasaur can be seen napping in bright sunlight. There is a seed on its back. By soaking up the sun’s rays, the seed grows progressively larger.

Sword: There is a plant seed on its back right from the day this Pokémon is born. The seed slowly grows larger.

Shield: While it is young, it uses the nutrients that are stored in the seed on its back in order to grow.