ItemDex/RGBY:023

ThunderBadge (Japanese: オレンジバッジ, Orange Badge) (hex:17) is an unavailable inventory item in Pokémon Red, Blue, and Yellow.

In the final game the ThunderBadge is added to the player's Trainer Card and not the inventory, however ThunderBadge is a list entry for the badge man in Cerulean City.

The ThunderBadge cannot be used both in and outside of battle. Attempting to use it will bring up Professor Oak's 'unusable' message.