You head into the cave leading inside the volcano called Corona Mountain. As you can see, the level is a bunch of platforms floating in lava. Most platforms are metal squares with either spikes or flames on it. You can extinguish the flames by shooting at it from a distance, or using the Hover Nozzle to float over it. Both are effective. The spikes, however, need the Hover Nozzle. You need to float above them when the spikes are out, and then land when the spikes retract. You will come across two solid platforms, each with a water pump to refill. The second platform has a ship ready for you to ride. You need to use your regular nozzle to navigate around the rocks and not sink into the lava. After going through the rocks, you land on the final platform. There is a Rocket Nozzle box, which you need to collect in order to continue. With the Rocket Nozzle in hand use it to land on the moving clouds above. Once you land on the top, stationary one, use one more Rocket to launch yourself into the final boss fight.
FINAL BOSS FIGHT: BOWSER AND BOWSER JR.
They are both fighting you from inside a tub with green water. Bowser will shoot flames at you, and Bowser Jr. will fire homing Bullet Bills at you. Avoid both and go to one of the five points surrounding the tub that have the Rocket Nozzle symbol. Use the Rocket Nozzle and do a Ground Pound to destroy that section of the tub. Get back to the main section before the point falls with you on it. Bowser's and Bowser Jr.'s attacks become harder to avoid after a couple hits. But once you Ground Pound all five points, the fight's over.
Watch the final cutscene that leads into the credits! Sit back, relax, and enjoy!
