By Spencer . December 30, 2005 . 3:13pm
Hidden in Super Mario Brothers is the legendary minus world. You can access this infinite swimming level if you hit the blue blocks near the warp zone in 1-2 in a specific order. The Ultimate Minus World Guide has all the information you need to complete this task and see the secret world yourself. They even uncover the truth about the technical existence of the world, it’s not a mere glitch.