A (C0)
This title is incorrect due to technical limitations. The correct title is a.
a is a glitch found the Pokemon Red and Blue versions by doing Method #3 of the Mew glitch using a Pokemon with a special stat of 192.
If "a" is raised to around level 42, the game may unexpectedly freeze. "a" will naturally learn unusual glitch moves such as TM50. When asked to learn, say "no" because if you say "yes", the game will freeze. Since you need to press the A button or B button several times in order to see "a" (the letters are displaced), it is recommended that the player rename it.
"a"'s Yellow version equivalent is "44Hy", whose number will be #080 (as opposed to the Red/Blue "a", who will have #061). The Yellow version "4B4Hy" will also have types one and two blank, and have the cry of a Jigglypuff song when its stats are viewed.
Much like Q, a has a number that corresponds to another Kanto Pokémon, Poliwhirl.
See also: Glitch Pokemon