Why does the M' glitch have zapdos cry?

Pleaselog inorregisterto add a comment.

Glitch Pokémon are caused by glitches that have the game erroneously read placeholder data or non-Pokémon data as Pokémon data. Although many glitch Pokémon draw all their characteristics from data intended to be used elsewhere, some glitch Pokémon may have partially defined characteristics that are not intended to be accessed in-game: for example, in the case of MissingNo., its name is well-defined, but its base stats are read from data intended to represent the parties of several Bikers.

Like most other glitch Pokémon, it’s data comes from whatever code it can grab and use as a placeholder. This does really weird things like displaying it’s menu sprite as an NPC in the area, having a cry similar to Rhydon’s cry when viewing it’s stats, evolving into Kangaskhan at Level 0 and Clefairy at Level 128, Making your 6th item having a quantity of 128 upon catching, and corrupting game data if encountered after the hall of fame. :P

It is likely that M'’s data picked up some values it could read as it’s placeholder data, and it just so happened that the numbers generated picked up Zapdos’s cry’s index but changed the length and or pitch data. Why Zapdos? It has to have some cry generated, so it is probably impossible to not pick up the base cry of any Pokémon in R/B/Y. and the pitch being similar is just a coincidence; the data could be anything, and it ended up being similar to Zapdos’s cry. :P

Source

Hope I helped!

The M’ glitch doesn’t have Zapdos’s cry. Most Pokémon fans assume it is tho.