Smoky, Smoky Spires

Smoky, Smoky Spires is a course that can appear in certain personalized copies of Super Mario 64. It can replace Lethal Lava Land, though is often found by jumping into the wall opposite of Shifting Sand Land. It is a large plane of lava with several volcano-like structures, the titular spires, pointing up from the lava into the sky.

Geography
The bottom of the level is a large plane of lava with several large volcano-like spires stretching up into the sky, making up a large majority of the course. There are some platforms made of bones, similarly to those seen in Super Mario World, around the lava. There are some rock platforms sticking out of the spires, as well as floating platforms. At the top of the level is black smoke that functions the same as the poisonous gas in Hazy Maze Cave. The course is inhabited by Bullies on the platforms and Blarggs on the lava.

Missions
"1. CLIMB THE CENTRAL SPIRE""2. THE SPIRE SWITCHES""3. CLIMB THE FLAMING PLATFORMS""4. BOSS BLARGG BATTLE""5. 8 RED-HOT COINS""6. SURF FOR STAR FRAGMENTS""7. 100 COIN STAR"

Climb The Central Spire
In this mission, the player has to climb up to the spire in the center of the map, where a star can be found.

The Spire Switches
In this mission, the player has to find 3 switches throughout the level and press them. When all 3 are pressed, the star will spawn.

Climb The Flaming Platforms
In this mission, the player has to climb the spire in the center of the map, similarly to the first mission, but there is fire on some platforms, making it harder to reach the top.

Boss Blargg Battle
In this mission, the player has to fight a Boss Blargg for a star.

8 Red-Hot Coins
In this mission, the player has to find 8 red coins throughout the level.

Surf For Star Fragments
In this mission, the player has to use a Koopa shell to surf around the lava at the bottom of the level and collect 5 star fragments, which look similarly to the ones seen in Super Mario Galaxy. When all 5 are collected, the star will spawn above the player.