Mt. Molten

Mt. Molten is the volcano in the Melty Molten Galaxy in Super Mario Galaxy. There is a Launch Star above it, but if the Player drops into the volcano, there are coins on a rock floor at the bottom. However, the volcano will erupt 15 seconds after the Player went in, so they have to use another Launch Star at the bottom to get out. In the Purple Coin mission (Red Hot Purple Coins), there are purple coins down the sides of Mt. Molten.

Trivia

 * The eruptions of Mt. Molten are not classed as Lava Spurts.