World -1

World -1 is a glitched level in Super Mario Bros.. It takes place in a neverending underwater level. It is impossible to beat, so if you enter, you die. The terrain of the level is the exact same as the one in 7-2.
The level can be accessed by clipping into the final pipe in 1-2, then going into the pipe on the left without going too far right.
Category:Worlds
Category:Glitches