needed it so much, I made a Mega Y version of Missingno.
Y got the Mewtwo treatment; streamlined and specialized in speed and attack as opposed to the X which is defense-based.
Its power is linked to the abnormal emanation from its legs, thus its ability is Tough Claws.
My Missingno. design has been compared to the secretary bird so that is Y's base and also its shiny colors.
Shiny X and original Missingno. might come around if I feel like.