Mushroom Kingdom

From Zelda Wiki.org

The Mushroom Kingdom is the main setting in the Mario series. It has been featured as a stage in both Super Smash Bros. and Super Smash Bros. Melee.

In Super Smash Bros.

Mushroom Kingdom is the only unlockable stage in Super Smash Bros., being unlocked by finishing 1-P mode with all eight initially playable characters. It and Saffron City are the only stages in the game not entirely made of suspended platforms. It is based heavily upon Super Mario Bros., having Warp Pipes, POW Blocks, and Piranha Plants. There are three Warp Pipes in the stage, two on the land and one in the pit in the center of the stage. Entering one Warp Pipe would cause the player to randomly appear in one of the others. This is the only stage that has boundaries that are on the stage itself.

In Super Smash Bros. Melee

Mushroom: Kingdom is selectable from the beginning in Super Smash Bros. Melee. It is also based on Super Mario Bros., but many changes have been made. The Warp Pipes, Piranha Plants, and POW Blocks have been removed, being replaced with breakable Brick Blocks and ? Blocks, which make up most of the platforms. An additional pit has also been added to the stage, with one of the "balancing" platforms hovering over each. Another stage known as Mushroom Kingdom 2 was also in the game.