The second star will have you dealing with some more Bullies, so start the stage by going to the first Bully just past the arch. While you can go the same route as the first star, Boil the Big Bully, let’s take the right path at the fork. There will be some upside-down pyramid-shaped platforms here, which will move according to where Mario’s located on them, so be careful to not dip yourself in the lava. You should see the volcano here, which has a ring-shaped platform spinning around next to it. Jump on that, then wait until the lava subsides on the bridge connecting itself to the serpent-like walkway.
There will be some Bubbles acrossing this walkway, be watch out for them, until you get to the end. Ignore the bouncing block with the faces, as it’ll probably do more harm than good. Four square-shaped platforms that get dunked in lava will be just past the jumping block, so wait until it’s safe and cross them to a large platform with three Bullies. Three Bullies at once can be hard to deal with, so try to not get in the range of the others and take them out one-by-one. When all three Bullies are swimming in lava, a Big Bully will drop down. Bump it into the lava to get your star.