Walkthrough
Underground Path 5-6 is a small path that connects Route 5 and Route 6 by going underneath Saffron City. Only a few items can be found here by using the ItemFinder.
Items
Antidote: ItemFinder
Paralyze Heal: ItemFinder
Awakening: ItemFinder
Potion: ItemFinder
Ice Heal: ItemFinder
Burn Heal: ItemFinder