Characters: Team Meanies (Males Gengar and Ekans and female Medicham), Team Charm (Females Lopunny, Gardevoir and other Medicham) and the other female Gardevoir from the Ninetale Legends (Nintendo's Pokemon Mystery Dungeon)
Screenshot taken from Valve's Garry's Mod.

When these two Pokemon teams have met, both of these female Medichams just developed the instant rivalry, due to their differences. One of them would work to do some dirty deeds while the other work with honor and great sense of justice. Their respective teammates are also now trying to reason with them, for there's no need for unnecessary argument. Meanwhile, Team Charm's Gardevoir asked the other from the Ninetale Legends "So, um, you and Gengar knew each other, huh?" "It's a very long story, dear." she responded.