>>45417004Wrong. That's not how Missingno. works at all.
It's not a "location" where removed code was put. And you don't need code in the first place to add an evolution to a Pokémon, just an entry of the method (level, item, trade).
Originally, 190 Pokémon were planned to appear in the games. Eventually, for whatever reason, they decided to reduce this number to 150. All the Pokémon that were cut were assigned Pokédex Number 0, given the name Missingno. and that's it.
Then they filled one of these slots with Mew and stored its data were the debug tools used to be stored, so now we have 190 - 151 = 39 Missingno.s