Rattler Race (PC)
Easy Level Finish First start a game on any difficulty with the "Computer Snake" option set to 1, 2, or 3 (it doesn't matter). Next when the level starts, and you see a snake coming out the top of the level, hit "F3" to pause the game. Go back up to "Options" and set "Computer Snake" to 0. Now just navigate your snake through the opening at the top and the level is finished! Of course you'll have to set the snake number to something other than 0 before the next stage. But you get the idea.