Hello! I'm present a guide! "Creating Missingno in D/P/P!
Attention:
¡Please, use this with brain!
¡I don't make responsible!
You need:
-Pokesav(here)
-Hex Editor(here)
Steps:
-Open the Pokesav and make a Pokémon(Arceus) with the characteristics that you want(Remenber change the name to Missigno)
-When you are sure that you don't want to modify more, save the Pokémon(.pkm) file
-Open with the Hex Editor the .pkm file
-Modify EC01 located in the bits 08/09 and we will proceed to increase a value(ED01)
-Save It and list! Now, load with the Pokesav in your .sav!
Note:
In case it appears directly with the value ED01, continue raising values (EE01 or EF01) until it you works
EDIT: In this post I have hung a Missingno to download :3
missingno.pkm