The level begins on flat ground, with the volcanoes in the background erupting and debris beginning to rain down almost immediately. There are some Hard Blocks in the area that the debris will break through, and Kab-ombs that will light up and chase after the player after coming in contact with debris (or with a fireball from Fire Mario). This sort of expanse continues within the level until the midway point is reached, with occasional gaps in between. Just before the midway point is a one-way platform with a mini Warp Pipe underneath; there is a Hidden Block containing a Starman located here.
After the midway point, there are some gaps with Hard Blocks covering them. The ground steadily rises until it reaches a row of nothing but Hard Blocks; with the debris breaking the blocks and the multiple Kab-ombs in the area, this section is rather hazardous. After making it through the row of Hard Blocks, the flagpole will be reached, allowing the players to access the second-to-last level of the game.
- Volcanic debris
- Star Coin 1: The first Star Coin can be found at the very beginning of the level; near the top of the screen, on top of a platform connected to another platform through Hard Blocks.
- Star Coin 2: A Mini Mushroom is required for this coin. At the midway point is another mini Warp Pipe, this time underneath Hard Blocks. The player should let debris break through the Hard Blocks, then enter the pipe. The player should get through the maze inside, where the Star Coin can be found in the center, and they exit through the first mini Warp Pipe found earlier in the level.
- Star Coin 3: The third Star Coin can be found shortly after the midway point; the coin is surrounded by Coin Blocks, so the player must let debris break through the blocks in order to obtain it.