The Unown forms are chronicled in the Unown Mode G S C Stad2 and the Unown Report HG SS. In Generation III, two new forms were introduced as well: ? (question mark) and ! (exclamation mark). In Generation II, there were 26 Unown forms based on Latin alphabet characters. All of them are known as One form (Japanese: あるすがた a form), as seen in the Pokédex from Pokémon Brilliant Diamond and Shining Pearl onwards, as well as in Pokémon HOME.
While it is not known to evolve into or from any other Pokémon, Unown has 28 form differences.
Unown ( Japanese: アンノーン Unknown) is a Psychic-type Pokémon introduced in Generation II. Pokémon Brilliant Diamond and Shining Pearl.