Battletoads

The most difficult game ever made. Seriously. In theory, Battletoads looked like a beat-em-up, but the fighting was just a decoy. The game was really made to KILL YOU IN RIDICULOUSLY IMPOSSIBLE HIGH SPEED ONE-HIT KILL AREAS. Battletoads was so hard that the game's testers didn't even bother getting through the whole game with 2 players, and missed an obvious and major glitch that made Level 11 impossible with a second player.

Battletoads is the magnum opus of what Rare believed a game should be about - a difficulty level that can only be described as masochistic. As a joke hilarious only to them, they made the game have limited continues. Luckily for us, Rare eventually decided that games should be playable.