Bowser's Checkered Madness

Bowser's Checkered Madness is an area in B3313.

Description
The area consists of two rooms. The one the player spawns in also houses Bowser and two bombs, while the other, separated by a key door, has only one bomb and a cork box.

Origins
The area's layout seems to be an original creation. The walls seemingly have recolored textures from the vanilla Super Mario 64.

The music is a remix of the final boss theme from the Super Mario World OST.

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 his key, which lets them access more areas (there are 3 keys collectable in the hack, however which of them opens exactly which key doors is currently unknown).

Leading here

 * Crimson Hallway: In the maze, go through the key door to the right, and then fall through the hole.

Trivia

 * Despite the area being located in the second Bowser level, Bowser doesn't use the attacks that he gains in that fight. This is likely because they wouldn't function properly.
 * Breaking the cork box open reveals an invisible, sparkling object, collecting which ejects Mario/Luigi from the level, seemingly acting as a "key". However, it is likely that the object is a retextured star, which when collected in areas with Bowser battles look like keys, but don't actually grant the player the ability to open the key doors that it would otherwise allow to. The point of this appearing in the hack is unknown.
 * Collecting the Bowser 2 key in Bowser's Checkered Madness is one of the triggers that presses the Yellow Switch automatically.
 * Pressing the Yellow Switch gives you a Bowser 2 key.