Contra Force NES $30-$80

Don't let the Contra name fool you...this game is complete garbage. In fact, it originally wasn't even meant to be a Contra game...but Konami figured it would sell better if they slapped the Contra name on it. The game is filled with slow and clunky game play that can't even begin to hold a candle to the greatness that is Contra and Super C. Still, because of the rarity of this game when compared to the other NES Contras, it sells for a good chunk of money. It was also never released in Japan, and was a U.S. exclusive. Despite having about the same rarity as Tengen Tetris...it sells for a good deal more (most likely because it bares the "Contra" name). A loose copy on Ebay will set you back about $30-$40, while a complete copy with the box and booklet usually goes for around $60-$80.