>>42106153You can also take certain MissingNo and trade them up to gold/silver, which then reveals which gen 2 pokemon the MissingNo originally was. Gamefreak said that some pokemon in gold/silver were leftover ideas they couldn't put into gen 1 and had to cut out in the end. The season 1 anime was already teasing Ho-oh back in the red/blue days. Shame these 39 pokemon got cut in the original games