>>21313716>LALALA I CAN'T HEAR YOUI'll break it down to tiny pieces so your shit-for-brains can try to comprehend.
You are Sakurai. Ready to bring Smash upon the world. The roster you'll use is nearly complete, but you feel a single Pokemon rep might not cut it considering it's turning into a worldwide phenomenon.
So you turn to check your viable options:
Charizard. Hmmm... well, he is really popular, but i feel like its build would be hard to implement properly.
Oh, Meowth is a great option! It's well recognized and might be simple eno-
-Sakurai-san! Shigeru-San says that we don't have much time. The game must go gold next thursday!
-Damnit Iwata-sun! The roster is pretty small and irregular! We can't launch it with only 11 characters! It'd look weird! I was thinking of adding Meowth to fill in the last spot, Iwata-sushi!
-We don't have time for making another character, Sakurai-yen! We must build haste!
-Yes, b-but...
-No butts. It's how it goes. Get to it.
Hmmm... my autism doesn't allow me to ship it with 11 chalacterus. I need to fill this slot quickry!
AH! This pudding appears for 30 seconds at the end of some episodes and it looks JUST LIKE MY LITTLE BLAINCHILD! Problem solved.
Tl;Dr: Jigglypuff is a lazy, undefendable last minute addition who could've been cut for another jokemon in the next installment or replaced from the start, but was kept simply because it's stupidly easy to implement.