Urban Champion

In the early days of the NES I believed nintendo could do no wrong.  We had Mario which was perfect.  We had Kung Fu which was addicting fun.  We had Duck Hunt which had a crazy dog.  What we needed was a 2D fighting game...maybe we could call it Street Brawler...or Street Scrapper....or Street Fighter....NO WAIT...let's call it Urban Champion and let's make it the worst game in the history of nintendo...ok..DONE!

Congo Bongo

This game had the ability to lure me in over and over...even though I never had fun and I could not play it in any reasonable way.  The arcade version was beautiful....the 2600 version was of course an abomination. Those monkeys are some real bastards.

http://www.youtube.com/watch?v=kWqilHI9_vA

Mario Bros

After the debacle with the monkey, Mario now aided by his brother Luigi got back to bidness in the sewers.  I mean they are plumbers right?  This game seemed better then that it does now, primarily because it set the stage for one of the greatest moments in gaming history that would forever eclipse this game...

E.T. The Extra-Terestrial

The game that gets blamed for killing the 2600 and the American gaming industry in 1982.  To be fair this game does suck. It should suck as all  high profile movie tie-in licensed games do...they ALL suck. (Feel free to try to list the exceptions that prove the rule in the comments)

Robotron 2084

Let's stop playing around.  Robotron 2084 is the best arcade game of its era by a long shot.  It has immaculate control, brutal but rewarding difficulty, spectacular sound design, evocative graphics and sooooooo much fun you can't really understand it.  Save the last human family (of hundreds of clones) from our evil mechanized overlords. If I was going to bother to have one classic game in my home...this is it.