I managed to find more crazy Mario 1 levels again! I will continue the series awhile longer! It's been a good time. They are still glitchy and buggy and sometimes freeze, that's what I like, messing up the game.
In this video you go to a randomized underground level. It is messed up but still playable sorta. Mario dies in level then goes to a different underground level. Weird. Sometimes when you die with these codes you go to a different stage for some reason.
Next is a weird water level that isn't supposed to be a water level. There is no ground. You end up at a flagpole, when you go on it Mario dies from no floor.
Next is my favourite new video! Mario is again in a water level and the stage is totally scrambled. It glitches out hard. While progressing through the end level fireworks go off and the game freezes!!
Next is one of the weirdest levels I've seen. It is bonus stage themed with all the happy clouds around and bonus stage music. It looks outside. The screen gets kinda buggy. It's pretty wild.
I found a few more stages and weird codes so will make another post on Mario 1 new levels again soon.