1-2 Remix (Underground)
From the Super Mario Wiki, the Mario encyclopedia
1-2 Remix (Underground) is the nineteenth sample course in Super Mario Maker, based on World 1-2 from Super Mario Bros.. As such, it is set in the ground theme for the main area and in the underground theme for the sub-area, as well as in the Super Mario Bros. game style.
The level is fairly the same as in the original, except there are now Mystery Mushrooms that turn Mario into a Goomba. A ? Block containing a Super Mushroom in it can be found behind the Warp Pipe that leads underground. Additionally, the Warp Zone area instead contains some Mystery Mushroom costumes.
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