Pokémon FireRed Edit
Pokémon Crystal Edit
Emile is introduced to Oak as a friend of Mr. Pokémon.
In HeartGold and SoulSliver, he eventually gives the player the Hoenn starter of their choice.
Pokémon Platinum Edit
Emile visited Oak's home in Eterna City. Oak gave Emile an Upgrade and then told him about the Kanto Legendary Birds.
Oak was referred to by Emile while mentioning the expired Shaymin event, which required "Oak's Letter".
Pokémon Snap Edit
Oak appears as one of the two characters, alongside Todd Snap.
- Oak is 47 years old in FireRed and he is 50 years old in Crystal.
- Oak was referenced in the title of Pikmin 3 - Day 22: Oppressor Oak.