Did I Hear Something about a Gengar In The Old Chateau?

Question

I Want A Gengar, and I Thought I Heard Something about 1 Being in The Old Chateau on a certain day.... If So, and Gengar Does Come There on Certain Days, Please Tell Me When and How I Could Get It! Thanks:)

Answer 1

Not on certain day, but using GBA insertion. And, not only 1 but, if I understood well, many wild ones.

Comments

I read on Serebii any game! is that right?!

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YEah, it's GBA insertion, so emerald will work.