CascadeBadge (Japanese: ブルーバッジ, Blue Badge) (hex:16) is an unavailable inventory item in Pokémon Red, Blue, and Yellow.
In the final game the CascadeBadge is added to the player's Trainer Card and not the inventory, however CascadeBadge is a list entry for the badge man in Cerulean City.
When it is used outside of battle the player will throw a rock and an isolated channel of Professor Oak's 'follow me' music will play. In battle this rock will double the catch rate of the foe.