Welcome to Mario's arena, the Mushroom Kingdom. This is a stage for platforming fans. Other than the blocks, all platforms can be jumped onto from underneath, providing a spacious scene for maximum maneuverability. If you do get cornered, the pipe's provide a quick escape route, sending you to the opposite side of the stage. Sometimes you need to avoid your opponent and conjure up a new strategy.
From time to time, you'll hear a canon being fired. BOOOOOOM!!! Following that sound, a bullet bill will blast across the screen like a rocket!
At the bottom of the stage, one of Mario's trademark pits lies waiting for its next victim. Do those things even have a bottom? If you're not close enough to grab the edge, consider yourself a goner. Don't get caught flinching around that!