

In FireRed and LeafGreen, he is one of the few sources of Balls introduced in Ruby and Sapphire, rewarding players with a Net Ball for showing him a record-breaking Magikarp. In Generation II, he claims to be a younger brother of the Fishing Guru of Lake of Rage. He gives Super Rods to those in whom he detects a love of fishing. In Generation I, Generation II, Generation III, and Generation IV a brother of the Fishing Guru lives on Silence Bridge. If the player brings him a large enough Magikarp, he will give the player an Ether as a prize.

His greatest dream is to see the world's largest Magikarp, and he regularly measures those brought to him in order to realize it. In the Generation II and Generation IV games, a man known as the Fishing Guru lives at Lake of Rage, in Johto.

Later, in Generation II, he is known as the Fishing Dude and claims to be the eldest of the Fishing Brothers. In Generation I and Generation III, a man known as the "Fishing Guru" can be found in Vermilion City, of Kanto, who gives away an Old Rod to the player.
