Currently, only three segments of the stage have been revealed. The first part of the level is a typical ground level, as seen throughout the Mario universe. The backgrounds appear to be taken from New Super Mario Bros., but the tiles are custom and the enemies appear to have edited Super Princess Peach sprites. It contains the usual assortment of Goombas, Koopa Troopas, Warp Pipes, Brick Blocks, and Piranha Plants.
At the end of the first area, there is an unusual wide Warp Pipe that will bring players to the second portion of the level; an underground level. All that has been revealed is that there will be a fight with Petey Piranha near the beginning, with Boos also making an appearance at some point in the underground segment.
The third and supposedly final area is Bowser's Castle, complete with Bowser's loyal Goombas and Koopas. At the end of the castle, there is a cannon that will supposedly send players to the final boss of this stage. Any other feature, besides those mentioned previously, are currently unknown.