Thwomp Volcano

Thwomp Volcano is a large currently inactive volcano in the southeast corner of the Mushroom Kingdom. The Mario Bros. came here in pursuit of Bowser during the events of Mario & Luigi: Partners in Time. Young Elvin Gadd lived here prior to its annual eruption. The volcano is full of, and appears to made out of Thwomps for some unknown reason. It also has five sublevels, including the basement floor in which Bowser and Baby Bowser are fought.

After the Hydrogush 4000 rendered it inactive, the Mario Bros. journey inside after being confronted by Mr. Thwomp and Mrs. Thwomp. Mrs. Thwomp becomes outraged that the volcano became inactive and her husband loses his confidence. After the battle with Mrs. Thwomp, Mr. Thwomp agreed to help the Mario Bros. get a lift inside.

A new Thwomp was found at the bottom of the first sublevel after Mr. Thwomp delivered the Mario Bros. to the top of the first sublevel. He helped the Mario Bros. get to the lower sub-levels of the Thwomp Volcano and was stopped when there was a large Giant ! Block blocking access to the next sublevel.

A second Thwomp was found running the Slot Machine Game. The Mario Bros. needed to play the game at least once to reach the next area. The game costs 100 coins to play and prizes vary upon the result of the game.

Another Thwomp was found near a Twister and an ! Block. The only way to reach the ! Block was to board it and Spin Jump up. Like the other Thwomp, he requires the Mario Bros. to play a mini-game involving spinning down a deep room and collecting gems. If they have collected enough gems, he will allow them to Jump on top of him and reach the block.

As every sublevel is passed, there will be a Warp Pipe in the left area of the sublevel. This allows the Bros. to return to that sublevel with ease.

When the fifth sublevel is reached, the Mario Bros. encounter Bowser and Baby Bowser. After the battle, a huge Shroobish Hand kidnaps them and takes them to the Shroob Mothership.