Your headcanons

How the Yandere Simulator do you know where Bowser's Castle is? DX
 
In darkland, 8 miles east of peach's castle.
 
The "worlds" are different biomes.

World 1 is in the centre and has many different weather conditions since the other worlds surround it. It is mostly grassy but has a few hills that are covered with colourful flowers, giving them distinctive patterns. Part of it ties in with the World 4 ocean, which Dinosaur Land is in the middle of. Both Peach's Castle and Toad Town are somewhere in there.

World 2 is a flat, barren, desert-like world. It hardly ever gets rain, but when it does, huge mushrooms grow there, making it a popular tourist attraction. The mushrooms occasionally spread to World 1, but since World 2 is so dry, they quickly shrivel up. World 2 is also home to some interesting wildlife, such as Spike Tops, Spinies and Pokeys.

World 3 is a snowy, mountainous world. Many Toads go on expeditions in the beautiful ice caves, while others simply stop by for a tour. Some Toads even live there, but they have to be very cautious about Ice Bros. and other possible hazards. From this world, Peach's Castle can be seen as well as Toad Town.

World 4 is a tropical world with a lot of rain as well as sun. Many tourists come to this world to see the lovely beaches and interesting fish. However, at night many Boos haunt the hotels, so visitors are advised to be vigilant. Some Toads live there but they make sure to bring a Poltergust 3000 when they go out at night.

Contrary to popular opinion, World 5 is NOT a rainforest. It is in fact a regular wood that has been rendered somewhat abandoned after the destruction of the World 5 Power Plant caused the rivers to run purple with poison and the fact that carbon monoxide is absolutely everywhere. Mario, however, comes straight back to life when he dies, so he's fine. The few species residing there have mutated e.g. Piranha Plants ---> Stalking Piranhas.

World 6 is where extreme sports happen and there are amazing mountain pathways. It is a quite dangerous area due to being in between World 5 and World 8, but many Toads aren't put off by this and continue to visit to do rock climbing, abseiling and many other climbing activities such as caving. During the winter, the Ice Ice Outpost opens and is used to provide delicious snow cones. Ice climbing can also be done there.

World 7 is a huge cloud that circles above all the other worlds. Rain constantly pumps out of it, meaning whichever world it's over, rain will fall. The World 6 Railway is the only way to access it since it is so high up and other means, such as hot air balloons and airships, are illegal. Spinies are common here despite them being native to World 2. Since Lakitus breed them, they have been brought to this world.

World 8, otherwise known as Dark Land, is the second most unpopular world, after World 5. It is the home of King Bowser Koopa and his family. Occasionally, Bowser will open it to allow Toads to visit his theme park, Dark Land Land. The rivers and lakes are all lava and sometimes poisoned air from World 5 will flow in via World 6.
 
The dancing Mushrooms in New Super Mario Bros. athletic levels are actually demonic beings. Same thing with the dancing coins and blocks.
 
Threek said:
so the bahs are demonic chanting?
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Yeah, they probably are.

Explains their increased prevalence in New Super Mario Bros. 2.
 
The koopalings are Bowser's imperfect attempts to clone himself and Junior was created when his cloning procedure was perfected.

And with the Paper Jam announcement, my theory of each series of Mario games being separate universes has been more or less confirmed.
 
Mario Party Δ said:
Threek said:
so the bahs are demonic chanting?
Click to expand...
Yeah, they probably are.

Explains their increased prevalence in New Super Mario Bros. 2.
Click to expand...
This is some funny stuff here, but it makes sense.

Doraemon said:
The koopalings are Bowser's imperfect attempts to clone himself and Junior was created when his cloning procedure was perfected.
Click to expand...
I've heard a theory like this before.

I believe that whoever Mario and Luigi's father is (quite possibly Jumpman, but that's a theory for another day) was a hero in the Mushroom Kingdom as well. It would explain why the Baby Mario Bros. were able to visit Peach's Castle at the beginning of Partners in Time.