Mostly KOF ones,lol.

1.) King of Fighters 98' Ultimate Match: Esaka?
http://www.youtube.com/watch?v=uYxu2Fds13A&feature=related
Hell, I fucken love this theme, from the little bells in the intro to the mix of all three guitar, bells, and drums. Epic theme.

2.) King of Fighters 98': Ultimate Match: Arashi no Saxophone #2
http://www.youtube.com/watch?v=IdIwOnxqB40
Love the jazzy feel with the electric guitars and drums, gives it a good beat 'n' all.

3.) King of Fighters 2000: Goodbye Esaka
http://www.youtube.com/watch?v=LLTf0xGW4BE&feature=related
That acoustic guitar playing while the ongoing beats and such. Really catchy.

4.) King of Fighters 99': Tears
http://www.youtube.com/watch?v=uFg4n_Y7hEo&feature=related
Epic theme, good beats and such. I love it. :3

5.) King of Fighters 2002: Unlimited Match: Antimony Mutually Exclusive Dichotomy
http://www.youtube.com/watch?v=PU_dJEL4H1o&feature=related
Starts out evilish then to some rockish, really catchy part somewhere around the middle.

6.) King of Fighters 2003: I'm Hot for You
http://www.youtube.com/watch?v=isZMvJq5rTA
Love the speed of the song and the saxophone playing all those catchy parts.

7.) King of Fighters XI: An Improved Concertio
http://www.youtube.com/watch?v=sZ7yd7EugYo
Love the piano playing, then that orchestral-ish styled parts.

8.) Super Smash Bros' Melee: Onett
http://www.youtube.com/watch?v=UtnTnP3WzaA
Has so much nostalgia into it, I love it. <x3

9.) Mugen no Frontier (English name is long as hell,lol): Steel Beowulf
http://www.youtube.com/watch?v=RmR4rOFMugA&feature=related
Theme to one of my favorite mechs of the series:Alteisen Nacht, or the translation from German to English: Scrap Iron Night. lol

10.) Megaman Battle Network 6: Battle theme
http://www.youtube.com/watch?v=oQ0P0YRdZS4
Favorite theme from the entire series, really catchy, gotta love the "digital beeping" in the background,lol.
6.)