Megaree/History/GSC

Megaree first appeared in Murkrow Row. He was originally a owned by Professor Elm alongside a Cyndaquil and a. After Cyndaquil and Totodile were taken by and, respectively, Chikorita was left alone in Professor Elm's laboratory.

In Three Cheers for Chikorita, Chikorita learns about, a who specializes in capturing Pokémon. Professor Elm initially intended to give Chikorita to Crystal, but she already had a full team and had no intention of adding any more permanent team members. Upon learning this, Chikorita gets angry and runs away to find Crystal.

He finds Crystal attempting to capture a  on. Just as Crystal attempts to attack the Victreebel with Archy, Chikorita steps in the way, forcing Crystal to stop the attack. Victreebel takes this opportunity to use Chikorita as a shield, preventing Crystal from attacking. After having prevent Victreebel from escaping with, Crystal captures both Chikorita and Victreebel. Crystal attempts to transfer Chikorita over to, but Chikorita stops her and reveals he wishes to join her team. Crystal, believing Chikorita to be too weak to join what would be a dangerous journey to capture Pokémon, refuses to let him join her team. When Chikorita still chooses to join her, Crystal sends out Monlee to battle against him. Monlee easily blocks Chikorita's and even shatters the ground in front of Chikorita with a. Despite being outmatched, Chikorita stands his ground and refuses to run away. Impressed by his bravery, Crystal allows Chikorita to join her team and names him "Megaree". As Megaree would take his spot on Crystal's team, Chumee gave Megaree her star pendant so that he would match the rest of Crystal's Pokémon.

In Suddenly Suicune I, Megaree participated alongside the rest of Cyrstal's team in her attempt to capture.

In Lively Larvitar, Megaree battled a wild that was responsible for Archy's eye injury in the past. Although Larvitar proved to be a powerful opponent, it was eventually defeated when Megaree evolved into a, allowing Crystal to capture it. In Lively Lugia II, Megaree is happily reunited with Exbo and Totodile, who have since evolved into and, respectively. Together, the three fend off a wild at the Whirl Islands. When Lugia attempts to crush them under its weight, Megaree, Exbo, and Croconaw work together to hold Lugia up. The strain of this causes Megaree, Exbo, and Croconaw to evolve into, , and , respectively. Though they succeed in saving their Trainers, Lugia eventually escapes.

In The Last Battle XIV, Megaree is used alongside the other starters to try and stop the Masked Man's attempt to capture.