First, fire-breathing Mechakoopas will appear. They need to be destroyed by either stomping on them or throwing them within sixty seconds. If they are breathing fire, they hurt the player if stomped or if the player tries picking them up, but they can be stomped or picked up if they are charging up. After this, Bowser sends three fire rings and the player must avoid them for thirty seconds. If successful, Bowser will fight the player himself.
He can charge at the player, breathe fire while walking around, and try to stomp the player. To dodge this, the player must get out of the way when he jumps through the air. When he lands, he will crack a tile. After a tile cracks three times, both characters will be sent pummeling to the final area. When Bowser first jumps to the stage, the middle tile gets cracked, so this tile needs only to be landed on twice, however. Bowser will drink a potion and grow to ten times his normal size, but makes the floor collapse, and Bowser is wedged due to the building's structure.
After commenting that he is stuck and taunting the player, Bowser throws fiery red orbs (which unleash small waves of lava after they hit the ground and leave a small black core behind), breathe a huge stream of fire, then send out an electric purple orb, which gives off a shockwave that can destroy the orbs leftover from the first attack. When the orbs are heated up by his breath, they turns into spheres of light, and the player has to pick one up and hit Bowser's face with it. After Bowser is hit five times, he breaks through the structure and gets sucked into the background vortex, defeating him.
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