The Pokédex 000 item duplication glitch (also referred to as the Rare Candy cheat due to the preferred item chosen to duplicate) is a glitch in the Generation I games. It allows the player to duplicate items in their Bag. other than its Ghost and Fossil forms on Pokémon Yellow will commonly freeze the game.

Does the old man glitch work in Pokémon Yellow?

This glitch was removed in all versions of Pokémon Yellow by blanking the data for wild Pokémon before overwriting it, and reprogramming the shore tiles to not call any wild Pokémon.

Does the MissingNo glitch work in yellow?

The Fossil and ghost MissingNo. exist in Yellow and have the same sprites as in Red and Blue. They also work the same way. Since the sprites are valid, these MissingNo.