Hm...
WAY WAY too many to list. But here goes:
Opening Theme - Phantasy Star
Silent Zone - Phantasy Star II (Best PSII Song, and Best PS song period!)
Excite Town - Phantasy Star II
Exclamation - Phantasy Star II
Mystery - Phantasy Star II
Phantasy - Phantasy Star II
Never Dream - Phantasy Star II
Under - Phantasy Star II
Violation - Phantasy Star II
The End of The Millenium - Phantasy Star IV
Field Motavia - Phantasy Star IV
Thray/Rune - Phantasy Star IV
Organic Beat - Phantasy Star IV
Laughter - Phantasy Star IV
The Age of Fables - Phantasy Star IV (Best PSIV Song)
Ooze - Phantasy Star IV
Staff Roll - Phantasy Star IV
Battlefield - Golden Axe
Title Screen - Golden Axe
Wilderness - Golden Axe
First Stage - Golden Axe II
Castle - Golden Axe II
Mountain - Golden Axe II
Ruins - Golden Axe II
Volcano - Golden Axe II
Red Knight - Golden Axe II
Moon Beach - Streets of Rage
Go Straight - Streets of Rage 2
Revenge of Mr. X - Streets of Rage 2
SOR Super Mix - Streets of Rage 2
Boss Battle - Vay
Jetta's Stage - Eternal Champions: Challenge From The Darkside
Raven's Stage - Eternal Champions: Challenge From The Darkside
Midknight's Stage - Eternal Champions: Challenge From The Darkside
To Far Away Times - Chrono Trigger
Time's Scar - Chrono Cross
Dream of The Shore Near Another World - Chrono Cross (Best CC Song)
Dragon's Wish - Chrono Cross
Garden of God - Chrono Cross
Time of The Dreamwatch - Chrono Cross
Frozen Flame - Chrono Cross
Radical Dreamers ~ Unstolen Jewel - Chrono Cross
Star-Stealing Girl - Chrono Cross
Quitting The Body - Chrono Cross
Magical Dreamers - Chrono Cross
Lost Pieces - Chrono Cross
Life Faraway Promise - Chrono Cross
Earth Dragon's Island - Chrono Cross
Dilemma - Chrono Cross
Singing Emotions - Chrono Cross
Star Tower - Chrono Cross
Navel of The World - Chrono Cross
Missing Perspective - Parasite Eve
Omission of The World - Parasite Eve
Plosive Attack - Parasite Eve
Primal Eyes - Parasite Eve
Under The Progress - Parasite Eve (Best PE Song)
Prologue - Final Fantasy IV (The single greatest video game song of ALL-TIME!)
Red Wings - Final Fantasy IV
Theme of Love - Final Fantasy IV
Final Battle - Final Fantasy IV
The Decisive Battle - Final Fantasy VI
Locke - Final Fantasy VI
World Map Theme - Final Fantasy VI
Aeris' Theme - Final Fantasy VII
Birth of a God - Final Fantasy VII
Cait Sith's Theme - Final Fantasy VII
Chasing the Black-Caped Man - Final Fantasy VII
Cid's Theme - Final Fantasy VII
City of the Ancients - Final Fantasy VII
Fighting - Final Fantasy VII
Forested Temple - Final Fantasy VII
Hurry Faster! - Final Fantasy VII
Interupted by Fireworks - Final Fantasy VII (I like the MIDI version better)
J-E-N-O-V-A - Final Fantasy VII
Jenova Absolute - Final Fantasy VII
Off the Edge of Despair - Final Fantasy VII (Best FFVII Song)
Sending a Dream Into The Universe - Final Fantasy VII
Staff Roll - Final Fantasy VII
WEAPON Raid - Final Fantasy VII
World Crisis - Final Fantasy VII
The Landing - Final Fantasy VIII Demo
Don't Be Afraid - Final Fantasy VIII
Find Your Way - Final Fantasy VIII
Love Grows - Final Fantasy VIII
Maybe I'm a Lion - Final Fantasy VIII
Mods de Chocobo - Final Fantasy VIII
Never Look Back - Final Fantasy VIII
Only a Plank Between One and Perdition - Final Fantasy VIII
Premonition - Final Fantasy VIII
Roses and Wine - Final Fantasy VIII
Shuffle or Boogie - Final Fantasy VIII
Tell Me - Final Fantasy VIII
The Castle - Final Fantasy VIII
The Extreme - Final Fantasy VIII
The Landing - Final Fantasy VIII (Best FFVIII song)
The Mission - Final Fantasy VIII
The Stage Is Set - Final Fantasy VIII
My Mind - Final Fantasy VIII
Force Your Way - Final Fantasy VIII
The Man With The Machine Gun - Final Fantasy VIII
Battle Theme - Final Fantasy IX (Easily the best Battle Theme ever)
Bittersweet Romance - Final Fantasy IX
Crossing The Knoll - Final Fantasy IX
Hunter Chance - Final Fantasy IX
Jesters of The Moon - Final Fantasy IX
Living By The Blade - Final Fantasy IX
Loss of Me - Final Fantasy IX
Mystery Sword - Final Fantasy IX
Song of Memory - Final Fantasy IX
Tantalus Theme - Final Fantasy IX
The Place I'll Return to Someday - Final Fantasy IX
Vivi's Theme - Final Fantasy IX
You're Not Alone! - Final Fantasy IX (Best FFIX Song)
Black Mage Village - Final Fantasy IX
Freya's Theme - Final Fantasy IX
Melodies of Life ~ Final Fantasy - Final Fantasy IX
Sprouting - Final Fantasy X
Memories of Wave & Light - Final Fantasy X-2
The Shooted - Dead or Alive 2
Natural High - Dead or Alive 2
Break The Age - Dead or Alive 2
You Are Under My Control - Dead or Alive 2
Blazed Up Melpomere - Dead or Alive 2
Tehu Tehu - Dead or Alive 2
Vigaku - Dead or Alive 2
Hitohira ~Reminiscent of Ketsu - Dead or Alive 2
Glorious Victory - Dead or Alive 2 (Best DOA2 song, and best DOA song period)
Sarah's Theme - Virtua Fighter 2
Shun's Theme - Virtua Fighter 2
Lion's Theme - Virtua Fighter 2
Akira's Theme - Virtua Fighter 2
Sarah's Theme (Remix) - Virtua Fighter 2
Lion's Theme (Remix) - Virtua Fighter 2 (Best VF2 Song, and Best VF song period)
Akira's Theme (Remix) - Virtua Fighter 2
Sarah's VF Theme - Virtua Fighter 2
Lion's Theme - Virtua Fighter 4
Pai's Theme - Virtua Fighter 4
Lau's Theme - Virtua Fighter 4
Jacky's Theme - Virtua Fighter 4
Aoi's Theme - Virtua Fighter 4
Kage's Theme - Virtua Fighter 4
Sarah's Theme - Virtua Fighter Evolution
Wolf's Theme - Virtua Fighter Evolution
Jeffry's Theme - Virtua Fighter Evolution
Aoi's Theme - Virtua Fighter Evolution
Lei Fei's Theme - Virtua Fighter Evolution
Jacky's Theme - Virtua Fighter Evolution
Ryu's Theme - Street Fighter II
Ken's Theme - Street Fighter II
Ryu's Theme - Street Fighter Alpha
Ryu's Theme - Street Fighter Alpha 2
Ryu's Theme - X-men vs Street Fighter
Gambit's Theme - X-men vs Street Fighter
Zangief's Theme - X-men vs Street Fighter
Cirrus - Ikaruga
Ideal - Ikaruga
Butsutekka - Ikaruga
Trial - Ikaruga
Cairodrome - WipEout
Cold Comfort - WipEout
Messij Recieved - WipEout
That's all I can think of now. I'll add more later.