That website seems to be a V1 website....... But you can get a Memetchi on your V2 from a Hinotamatchi, and a Young Mimitchi of what I know and you can get a Memetchi on a even generation, and you can't get a memetchi from a Oniontchi, you get a Oniontchi on a Odd generation so It's impossible. Go here to see where I got most of my info. HOPE THIS HELPS!!!