S:

Saboteur - Action
http://xboxamerica.com/games/386/Saboteur

Sacred 2: Fallen Angel
http://xboxamerica.com/games/380/Sacred-2:-Fallen-Angel

Saints Row - Action
http://xboxamerica.com/games/20/Saints-Row

Samurai Warriors 2 - Action
http://xboxamerica.com/games/233/Samurai-Warriors-2

Samurai Warriors 2: Empires - Action
http://xboxamerica.com/games/371/Samurai-Warriors-2:-Empires

SBK-07 Superbike World Championship
http://xboxamerica.com/games/363/SBK-07-Superbike-World-Championship

Scene It? Lights, Camera, Action - Family
http://xboxamerica.com/games/475/Scene-It?-Lights,-Camera,-Action

Schizoid - Xbox Live Arcade
http://xboxamerica.com/games/378/Schizoid

Scramble - Xbox Live Arcade
http://xboxamerica.com/games/285/Scramble

Screwjumper! - Xbox Live Arcade
http://xboxamerica.com/games/491/Screwjumper!

Sea Life Safari
http://xboxamerica.com/games/555/Sea-Life-Safari

SEGA Rally Revo - Racing
http://xboxamerica.com/games/234/SEGA-Rally-Revo

Sensible World of Soccer - Xbox Live Arcade
http://xboxamerica.com/games/302/Sensible-World-of-Soccer

ShadowClan - Action
http://xboxamerica.com/games/38/ShadowClan

Shadowrun - Shooter
http://xboxamerica.com/games/207/Shadowrun

Shaun White Snowboarding - Sports
http://xboxamerica.com/games/156/Shaun-White-Snowboarding

Shotest Shogi
http://xboxamerica.com/games/515/Shotest-Shogi

Shred Nebula
http://xboxamerica.com/games/514/Shred-Nebula

Shrek the Third - Action / Adventure
http://xboxamerica.com/games/360/Shrek-the-Third

Shrek-n-Roll - Xbox Live Arcade
http://xboxamerica.com/games/490/Shrek-n-Roll

Sid Meier's Civilization Revolution
http://xboxamerica.com/games/456/Sid-Meier's-Civilization-Revolution

Simpsons: The Game
http://xboxamerica.com/games/438/Simpsons:-The-Game

SKATE - Sports
http://xboxamerica.com/games/357/SKATE

Small Arms - Xbox Live Arcade
http://xboxamerica.com/games/196/Small-Arms

Smash TV - Xbox Live Arcade
http://xboxamerica.com/games/125/Smash-TV

Soldier of Fortune Payback - Shooter
http://xboxamerica.com/games/492/Soldier-of-Fortune-Payback

Soltrio Solitaire - Xbox Live Arcade
http://xboxamerica.com/games/398/Soltrio-Solitaire

Sonic the Hedgeghog - Xbox Live Arcade
http://xboxamerica.com/games/458/Sonic-the-Hedgeghog

Sonic The Hedgehog 2 - Xbox Live Arcade
http://xboxamerica.com/games/473/Sonic-The-Hedgehog-2

Sonic the Hedgehog High Speed - Action
http://xboxamerica.com/games/153/Sonic-the-Hedgehog-High-Speed

Soul Caliber IV - Fighting
http://xboxamerica.com/games/602/Soul-Caliber-IV

Soulcalibur - Xbox Live Arcade
http://xboxamerica.com/games/596/Soulcalibur

Space Chimps
http://xboxamerica.com/games/603/Space-Chimps

Space Giraffe - Xbox Live Arcade
http://xboxamerica.com/games/468/Space-Giraffe

Speedball 2: Brutal Deluxe - Xbox Live Arcade
http://xboxamerica.com/games/394/Speedball-2:-Brutal-Deluxe

Spider-Man 3 - Action
http://xboxamerica.com/games/155/Spider-Man-3

Spiderman: Friend or Foe
http://xboxamerica.com/games/481/Spiderman:-Friend-or-Foe

Spiderman: Friend or Foe
http://xboxamerica.com/games/482/Spiderman:-Friend-or-Foe

Spyglass Board Games - Xbox Live Arcade
http://xboxamerica.com/games/399/Spyglass-Board-Games

Star Trek: Legacy - Action
http://xboxamerica.com/games/89/Star-Trek:-Legacy

Star Wars: The Force Unleashed - Action
http://xboxamerica.com/games/355/Star-Wars:-The-Force-Unleashed

Street Fighter II Hyper Fighting - Xbox Live Arcade
http://xboxamerica.com/games/77/Street-Fighter-II-Hyper-Fighting

Street Fighter II Turbo HD Remix
http://xboxamerica.com/games/450/Street-Fighter-II-Turbo-HD-Remix

Street Trace: N.Y.C. - Xbox Live Arcade
http://xboxamerica.com/games/284/Street-Trace:-N.Y.C.

Streets of Rage 2 - Xbox Live Arcade
http://xboxamerica.com/games/420/Streets-of-Rage-2

Strike Force Red Cell - Shooter
http://xboxamerica.com/games/152/Strike-Force-Red-Cell

Stuntman Ignition - Racing
http://xboxamerica.com/games/376/Stuntman-Ignition

Super Contra - Xbox Live Arcade
http://xboxamerica.com/games/216/Super-Contra

Super Ghouls 'N Ghosts - Xbox Live Arcade
http://xboxamerica.com/games/368/Super-Ghouls-'N-Ghosts

Super Puzzle Fighter II Turbo HD Remix - Xbox Live Arcade
http://xboxamerica.com/games/451/Super-Puzzle-Fighter-II-Turbo-HD-Remix

Superman Returns - Action
http://xboxamerica.com/games/49/Superman-Returns

Supreme Commander
http://xboxamerica.com/games/518/Supreme-Commander

Surf's Up
http://xboxamerica.com/games/425/Surf's-Up

Surf's Up - Sports
http://xboxamerica.com/games/424/Surf's-Up

Switchball - Xbox Live Arcade
http://xboxamerica.com/games/488/Switchball