Human Laboratory World

Human Laboratory World is a Special World found in the Saving World before Lost Map, featuring 4 Levels, and one that displays characters doing their chores, with a thanks to player for testing the world. with no time limit. Bowser does not make an appearance in this world.

Concept:
All of these Human Mutants seem to be  counterparts of the regular enemies, with the sole exception of Bullet Bill, Lakitu, Podoboo, Thwomps, and the enemies added to Mario Forever Remake, with funny sound effects when interacted with Mario for the sole of a "Joke World'. All of these characters seem to be under some unexplained experiments under unkown circumstances.

Variation:
Not all Human Characters made a playable appearance in the game, some have appeared in the World, and some have appeared as Epilogue Characters.

Playable Characters:
The Playable Characters so far (Including Mario Forever and Mario Worker Remake)

Epilogue Characters:
Characters that have not been faced in any version, but rather epilogue character, despite their prominent appearance in the begining of the world, none of these actually was set in action for unknown reason.

Trivia:

 * These Characters could be referenced by The Amalgamates from Undertale since they are cloned and mutated creatures, as they both share the same outcome from a laboratory. However, this is very unlikely since this world was created before Undertale was released.
 * Several Characters did not appear in Mario Forever, Mario Forever Remake, Mario Worker or Mario Worker Remake (except Mutatnt) as enemies to be faced.
 * The final Level is the only Level where Mario cannot acheieve a Loss Condition in as you cannot intereact with the in habitants of the laboratory, also holes do not exist.
 * It also serves as a message to thank the player for playing the World.
 * The Music Track used in the third Level is from World 3 Map.
 * Jaw Clone and Coder Clone are the only characters to be different from their counterparts.
 * Jaw Clone's Case, as they are red-fleshed, the one that shoots fireballs is Green-Fleshed, as opposed to Phirana Plant.
 * Coder Clone's case, once firstly stepped on, they instantly run as they lose their Keyboard, unlike Koopa Shells, they cannot be stopped as a second step on them will cause them to die.
 * Entering the Pipe that leads to this world makes Big Clone "Hoppa" Sound.
 * Fire and Beetroot versions do not make this sound.
 * Zorro Clone is the only Pop-Culture Character in this game.
 * It's possible that it was supposed to be a refernce to Buzzy Beetles, since they did not exist in Mario Forever, they did not make an appearance in action.
 * Bullet Bill is the only regular Enemy to make an appearance in this world.