Question marks

Question marks are often used to indicate things in the Pokémon games that are unknown:

The Unknown type, displayed in-game as File:UnknownIC.gif
An actual form of the Pokémon Unown
The Pokédex number of an obtained Pokémon not in a regional Pokédex
The ID number, OT name and National Dex number of a Pokémon egg
Glitches:
- Five question marks, a glitch Pokémon appearing in Generation II
- Ten question marks, another glitch Pokémon appearing in Generation III
- Eleven question marks, yet another glitch Pokémon appearing in Generation III
- Question mark, a glitch Pokémon that was used as filler for old Unown data in Generation III
- The description of several glitch items, such as Teru-sama
- MissingNo. and 'M's classification in the Pokédex.

This is a disambiguation page — a navigational aid which lists other articles that might otherwise share the same title. If an article link referred you here in error, please go back and fix it to point directly to the intended page.