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The first part of the level features an arena with an elevated platform in the middle. It features many Lava Hoppers on the elevated platform, as well as a few Lava Bucklers behind them and two Lava Supporters on an island platform nearby.
The second part of the level features an odd plus-shaped arena with elevated platforms on each corner. It features two Lava Ziggies, two Lava Hoppers, and one Lava Smasher, all of which are scattered around the center of the arena.
The third part of the level features the exact same arena, with one Lava Ziggy, two Lava Hoppers, one Lava Smasher, two Lava Supporters, and three Lava Bucklers, all of which are scattered on the "left" side.
The fourth part of the level features the exact same arena again, where Mario and co. must face Bwario and Bwaluigi again, and also face the Lava Queen alongside them. They are on the elevated platform at the "top right", with a Lava Ziggy, Lava Hopper, Lava Supporter, and Lava Buckler scattered on the "right" side.