Poké Gods were popular concepts after the release of Red and Blue in the United States. They were all fake, though.
They were thought to be nearly-invincible, well-hidden bonus Pokémon. So it seems no one was quite satisfied with MissingNo..
“Togepi was a supposed Poké God. "Stupid. Absolutely stupid. I've seen idiots, but none compared...Togepi
“Anthrax is a Poké God from Red/Blue/Green. It had no specific appearance, although it was...Anthrax