Red & Blue Underground Path 5-6
A long passage running under Saffron City to join Routes 5 and 6, letting Trainers slip straight past the walled-off city.
Underground Path 5-6 is in Kanto, with the entrance to Route 6. In the story you arrive from Route 5 through its entrance and it comes before Cerulean Gym.
UNDERGROUND PATH 5-6 MAP
Pokemon Encounters
Nidoran♀ (female)
ITEMS
The tunnel between Routes 5 and 6 holds just two items, a Full Restore and an X Special, both off the main walkway.
Full Restore
Restores HP to full and cures any status ailment and confusion.
Full Restore
Restores HP to full and cures any status ailment and confusion.
X Sp. Atk
Raises Special Attack by one stage in battle. Raises happiness.
Underground Path 5-6 Guide
Yes. Each version locks away a handful of route species. Ekans, Oddish, Mankey, and Growlithe stay in Red, while Sandshrew, Bellsprout, Meowth, and Vulpix belong to Blue, with Scyther and Pinsir split the same way. Trading with the other version is the only way to fill those gaps.
Three rods, three givers. A fisherman in Vermilion City hands over the Old Rod, which only ever hooks Magikarp. The Good Rod comes from a fishing fan in Fuchsia City and adds Poliwag, Goldeen, and other common catches. The Super Rod, waiting on Route 12, reaches the rod-only rarities listed here.


