World 8 -- Lava / Magma a Plenty

There are some good, taken names to call World 8: Lethal Lava Land, Bowser in the Fire Sea, Melty Molten World. There is a lot of molten rock here, which is going to make my life difficult. Volcano music plays in the background. I can't see Bowser's Castle yet. Surprisingly, Kamek is the boss of 8-Fort. I thought Bowser Jr. would be.