Route 22FireRed&LeafGreen
"West of Viridian City, leading to the Pokemon League front gate. Your rival shows up here for an early fight, and you pass through again before Victory Road."
ROUTE 22 MAP
West from Viridian City toward the Pokemon League entrance gate. Short route with tall grass on both sides of the path. Nothing complicated to navigate.
Pokemon Encounters
Mankey at 45% is the big draw early, a Fighting-type that handles Brock's Rock-types. Rattata fills the other 45% and Spearow adds at 10%. Come back later with Surf for Poliwag and Psyduck.
Old Rod1
Good Rod3
Super Rod5
Magikarp
Also found in 41 other locations
TRAINERS
Your Rival shows up here at different points in the game, from the single digits all the way to level 53. Always bring your best. Each visit hits harder.
Terry
Route 22 Guide
Yes. Several routes have version-exclusive encounters. FireRed gets Oddish, Growlithe, Scyther, and Electabuzz in certain areas, while LeafGreen gets Bellsprout, Vulpix, Pinsir, and Magmar. Check the encounter table for this route and look for the version tag next to each Pokemon.
After battling a trainer, walk 100 steps to recharge it, then use it while standing on the route. Nearby trainers ready for a rematch get an exclamation mark over their head. Rematched trainers carry stronger teams as you progress through the game. You get the VS Seeker from a girl in the Vermilion City Pokemon Center.