Remember when nintendo tried demonizing Missingno.?
Posted by: shatteredClockworks
Date: 2017-01-26 07:04:06
"MissingNO is a programming quirk, and not a real part of the game. When you get this, your game can perform strangely, and the graphics will often become scrambled. The MissingNO Pokémon is most often found after you perform the Fight Safari Zone Pokémon trick.
To fix the scrambled graphics, try releasing the MissingNo Pokémon. If the problem persists, the only solution is to re-start your game. This means erasing your current game and starting a brand new one."
I think they were desperate to get players not to use it for item duping.
Also they lied about it being a programming quirk, it was intentional as an error handler.
Nintendo.
Such anti-glitch.