Game information wasn't as readily available when these retro consoles were released, as it is for current generation software. You blindly walked into your local department store and grabbed the game with the coolest box art. Aside from renting or playing games at a friends house the only other information could be gathered from magazines such as EGM, Gamepro, or Nintendo Power.
Because of this a lot of great games never got the recognition they deserve and you've probably overlooked quite a few titles that are right up your alley. Retro Game Guide is here to fix that! The games section lists every game for each retro console in the database. You can go through and check out the average ratings for each game and read comments made by other users to help determine games are right for you.