Question for Pokemon Yellow: Special Pikachu Edition
So, I'm really far in the game. Actually, I already have all the legendaries except Mew. Which is what I need help on. I've seen cheats about pressing start continuously when I'm about to battle the Gambler, but I don't think I can do it since I've already battled, like, everyone. What do I do? And I also heard it's possible to catch Missingo?