MissingNo. is a glitch and an unofficial Pokémon species found in the video games Pokémon Red and Blue. Due to the programming of certain in-game events, players can encounter MissingNo. via a glitch. It is noted as one of the most famous video game glitches of all time. Encountering MissingNo. ̸i̴s̸s̷i̶n̷g̴N̶o̷.̸ ̸i̸s̴ ̸a̷ ̵g̷l̴i̵t̸c̵h̷ ̸a̶n̵d̶ ̵a̵n̷ ̷u̵n̵o̸f̶f̵i̸c̷i̸a̸l̷ ̵P̷o̴k̷é̷m̸o̵n̶ ̷s̶p̷e̶c̸i̷e̵s̵ ̸f̷o̸u̷n̸d̷ ̴i̵n̷ ̴t̵h̶e̶ ̸v̸i̸d̸e̵o̴ ̶g̴a̸m̶e̴s̸ ̴P̷o̶k̴é̶m̶o̶n̵ ̵R̴e̷d̸ ̶a̸n̴d̶ ̸B̷l̴u̶e̵