Where to find all of Professor Oak's sidekicks in Pokemon FireRed and LeafGreen

A total of six of Professor Oak's assistants are scattered throughout the Kanto region Pokemon FireRed and LeafGreen. Each of them gives trainers a reward for filling the Pokedex with a certain number of unique species of Pokémon caught.

Aside from the very first Professor Oak's Sidekick, the rest are optional encounters that can be easily missed by players who aren't guarding them. Since some of the rewards on offer are incredibly tempting, it's very helpful to know where to find these elusive scientists.

All of Professor Oak's assistant locations in FireRed and LeafGreen

The following table details the locations of all six of Professor Oak's sidekicks that can be found in Pokemon FireRed and LeafGreenwhat rewards they offer and how many Pokémon players must capture to claim those rewards.

In place of Professor Oak's aide	How to get a reward	Remuneration
Image via GameRant; Source: Bulbapedia and The Pokemon Company Tin City. Head east from Tin City and Aide will stop you before you enter Route 3, just before the entrance to Mt.	Defeat Brock in Pewter City	Running shoes
Image via GameRant; Source: Bulbapedia and The Pokemon Company Route 2 (East). Go through Diglett's Cave located east of Vermilion City to reach Route 2 (East). Cut the tree branch to the south with HM01 Cut and enter the gatehouse. Aide is located on the second floor.	Catch 10 different types of pokemon	Flash HM05
Image via GameRant; Source: Bulbapedia and The Pokemon Company Route 10. Go east from Pewter City via Route 9 to reach Route 10. Aide is located in the Pokémon Center next to the Rock Tunnel entrance.	Catch 20 different types of pokemon	Everstone
Image via GameRant; Source: Bulbapedia and The Pokemon Company Route 11. Head east from Vermilion City and enter the gatehouse connecting Route 11 to Route 12. The Aide is on the second floor.	Catch 30 different types of pokemon	Item finder
Image via GameRant; Source: Bulbapedia and The Pokemon Company Route 16. Head west from Celadon City on Route 16 and use the Poke Flute to wake the sleeping Snorlax to gain access to the Gatehouse. Aide is located on the second floor.	Catch 40 different types of pokemon	Amulet coin
Image via GameRant; Source: Bulbapedia and The Pokemon Company Route 15. Head east from Fuchsia City on Route 15 and enter the Gatehouse in the middle of the route. Aide is located on the second floor.	Catch 50 different types of pokemon	Exp. Share

​Professor Oak's assistant at the entrance to Route 2 is a guaranteed encounter that will stop you when you exit Tin City via the eastern exit after defeating Brock and earning the Boulder Badge.

Professor Oak

After players defeat the Elite Four and become champions, Professor Oak himself takes over as the final “Helper”. If your Pokedex has 60 different types of Pokemon Registered at the time your Pokemon is inducted into the Hall of Fame, Professor Oak will reward you with a national Pokedex that allows trainers to enter the actual post-game.

Obtaining the National Dex unlocks the following options in FireRed and LeafGreen:

• The ability to evolve Gen 1 Pokemon into their Gen 2 variants.

• Access to the extended Sevii Islands (Islands Four, Five, Six and Seven) via Rainbow Pass.

• Encounter legendary Pokemon after the game (Mewtwo, Ho-Oh, Lugia, Deoxys, Entei, Suicune and Raikou).

Systems

Released

September 7, 2004

ESRB

All 10+ / mild fantasy violence, simulated gambling

Multiplayer

Online multiplayer

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