Eternal Fort

Eternal Fort is an area in B3313.

Description
The player spawns in front of several platforms in the lava, which lead to the main platform. Next to that is a smaller, circular one, where Bowser resides.

Origins
The area's layout seems to be an original creation, with textures taken from the beta version of Super Mario 64.

The area's music is a track made by Bobstar.

Plot significance
Bowser, one of the supposed main villains, appears in this area. However, him not saying anything besides a vague threat after being defeated makes his intentions ambiguous. Defeating him lets Mario/Luigi collect the Grand Star, which leads them to the ending.

Leading here

 * Randomized Realm: Jump into the pipe at the end of the linear section.

Trivia

 * Before v0.7, defeating Bowser was much trickier, since there was only one bomb on the main platform, and the ones on the small platform can easily knock Bowser off the stage, which can nullify the hit and potentially turn the battle endless with no bombs left.