????? (Gold/Silver 00)

????? is a glitch Pokémon in. It is one of the variants of ?????.

Glitches caused
????? will render itself and all Pokémon under it in the party screen invisible to the PC, and thus cannot be deposited.

If ????? is encountered in the wild and caught, the battle with ????? will continue, and ????? will flee, causing a glitch dimension crash with a completely-white screen. Additionally, it is of note that while the footprint says "256", the Pokédex number is shown as "000". This is because footprint numbers start at 1, and the numbers in "missing" footprints are hardcoded as part of the footprint's image, making them immune to overflows.

????? shares an unnamed egg group with ????? (FC). This egg group corresponds with a value of 0x00 in the Pokémon base stats data structure.

Game locations

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Sprites
?????'s backsprite is the same as the Pokémon whose data was accessed last, but with ?????'s palette.