For whole series, i would say Metal Gear Solid series, but in title i would said the followings -Every version of Metal Gear Solid Theme (Metal Gear Solid) -The Best is Yet to Be (Metal Gear Solid) -Alert (Metal Gear Solid) -Snake Eater (Metal Gear Solid 3) -Victory AKA Sunny's theme (Metal Gear Solid 4) -Prima Eyes (Parasite Eve) -Forbidden Power (Parasite Eve 2) -Eyes on Me (Final Fantasy VIII) -Yuna's Theme (Final Fantasy X) -Sudeki Da Ne (Final Fantasy X) -Real Emotion (Final Fantasy X-2) -1000 Words (Final Fantasy X-2) -Midnight Illusion (Atelier Iris: Eternal Mana) -Grand Phantasm (Atelier Iris 3: Grand Phantasm) -Every version of Hell March (Red Alert) -Might of the Empire (Red Alert 3) -Enter the Shogan Executioner (Red Alert 3)
Beyond The Bounds (Zone of the Enders The 2nd Runner intro) Wishing for an Eternal Sky (SkyGunner intro)
Zeal Theme (Chrono Trigger) Frog's Theme (Chrono Trigger) Dr. Wily Stage 1 (Megaman 2) Metal Man Stage (Megaman 2) Boss Battle Theme (Final Fantasy IV) Moon Stage (Ducktales) Stage 1 Theme (Double Dragon) Jungle Jam (Contra) Stage 1-1 Theme (Super Mario Bros.) Gangplank Galleon (Donkey Kong Country) Super Robot Spirits (Super Robot Wars Alpha) Opening Theme (DBZ Budokai 3) Emptiness and.. (The World Ends with You) Twister Gang Remix (The World Ends with You) Cammy's Theme (Street Fighter II) Ryu's Theme (Street Fighter II) Ken's Theme (Street Fighter II) Zangief's Theme (Street Fighter II) Stage 1 Theme (Codename: Viper) Spark Mandrill Theme (Megaman X) and a lot more that i might've forgotten. which game do i think has the best Soundtrack all in all? Chrono Trigger, followed by Megaman 2.