Here are some online games.

Ultimate Flash Sonic

Game Gear Games: 

•  Sonic the Hedgehog 2
  

Nintendo Emulator Games:

• Ultimate Super Mario Brothers 3
• Mini Putt 
•  Monopoly
• Somari (Mario & Sonic)
• The Legend of Zelda 
• Metroid 

Gameboy Advnace Games(problems):

• 52 NES Games
• Arkanoid(Homemade)-this one works 
• Megatroid(Homemade)-this works too 

 Other

•  Wolfenstien 5k
  

 For more not listed here, goto http://www.game-oldies.com/

Play this great game called Super Mario War!Awsome multiplayer deathmatch with mario!