Some major characters in Games have a theme song that is associated with them. So, I'll be giving my personal favorites.
RULES: One Major Villain theme (As in a Villain can be here, but they can NOT be the true villain[Think Guzma{Minor} vs Lusamine{Major}]). One per franchise. I am allowed ONE repeat of any given Franchise
10-Miror B. (Pokémon Colosseum Verison)-
[link]IT'S SO FUNKY!!!!!!!!!!!
9-Laguna Loire (Final Fantasy VIII)-
[link]It is, in my opinion the saving grace of FFVIII.
8-Big the Cat (Sonic Adventure 1)-
[link]The ONLY redeeming part of Big the freaking Cat
7-Pokémon Trainer Red (Pokémon Heart Gold and Soul Silver)-
[link]This theme really sets the tone for your final challenge atop Mt. Silver against one of the most powerful trainers... EVER!
6-Christian Rosencreuz/Seto Kaiba (Yu-Gi-Oh! Duelists of the Roses)-
[link]I know damn well that Seto Kaiba is an ANIME character, but in This game he is supposed to be known as Christian Rosencreuz, who was the founder of the Rosicrucian Order(In Real History). He is just designed in a manner similar to that of Kaiba. Either way, this theme kicks some serious Blue-Eyes White ASS.
5-Dark Pit/Pitoo/Pitooey (Kid Icarus Uprising)-
[link]It sounds so... Western US-ish and I love it
4-Organization XIII (Kingdom Hearts II/Kingdom Hearts Chain of Memories)-
[link]Probably the best theme for any Villainous group, Mind you the Major Villain of Kingdom Hearts is Xehanort, not Organization XIII
3-Dr. Edgar George Zomboss (Plants Vs. Zombies)-
[link]It really is a fantastic song for a guy who wants to eat your BRAAAAAAAAAAAAAAIIIIIIIIIIIIIINSSS!
2-Geno (Super Mario RPG Legend of the Seven Stars)-
[link]It is so enchanting it makes me want to get lost in the forest maze
And for number one, I wanted to do a theme for a funny guy. After all, nobody thinks Big is funny, just brain dead, and Miror B. is more so funky. So for the Gold medal, Numero Uno, Numer Eins, Saikō no mawari: It is The Legenday Heropon,
RIKI (Xenoblade Chronicles)-
[link]It has so many cute things in the song it's beautiful.