24: Arbok 26: Raichu

Pikachu

25: Pikachu

Kanto

	HeartGold	SoulSilver	FireRed	LeafGreen	Yellow	Red	Blue
Walking in tall grass or a cave
Power Plant						25% L20–24	25% L20–24
Power Plant			25% L22–26	25% L22–26
Viridian Forest	5% L4 +1% L7 +1% L7	5% L4 +1% L7 +1% L7				5% L3–5	5% L3–5
Viridian Forest			5% L3–5	5% L3–5

Hoenn

	Emerald	Ruby	Sapphire
Walking in tall grass or a cave
Safari Zone SE	5% L25–27	5% L25–27	5% L25–27
Safari Zone SW	5% L25–27	5% L25–27	5% L25–27

Sinnoh

	Platinum	Diamond	Pearl
Walking in tall grass or a cave
Trophy Garden	10% L22–24	10% L18	10% L18