See shuckle,it doesn't need the name of Missingno. to have that identity. To explain missingno once and for all,it's a glitch in the game beacause of the amount of extra slots not used for pokemon or items. These remaining slots are glitches. The reason it was called Missingno. in G/R/B(wasn't in yellow >.<) is beacause it was "Missing Number". Missing Number is just what it says,a missing number,or slot in the Pok?emon game. The fact that the pokemon keep getting bigger,but so does the amount of slots,means Missing Number will be with us for a long time.
Edit:Wow,did I say all that? :cross-eye