Super Mario Bros. Minus world and past world 8-4

[malistaticy]

In super mario bros, (Japanese version) at the end of 1-2, if you stand on the pipes edge and jump backwards, you will glitch through the wall and get to the warp zone. but, the warp zone doesnt lead anywhere, so the game sends you into raw data. the level turns into " -1" because its level one of an unknown world. its trippy, colors are messed, the levels are the same but flooded, (kindof a scary thought) flying bowser heads and such. in the american version, it is your normal water world.