History NightmareFuel / SuperMarioGalaxy

* Some of the [[DoNotTouchTheFunnelCloud Tweesters]] have ''human bones'' swirling around in them. ''[[FridgeHorror How did they get those?!]]''

* [[https://m.youtube.com/watch?v=idqKs0VGZSw Pipe Interior]] is a surprisingly offputting song for something as quintessentially ''Mario'' as a bonus Warp Pipe room. It's an unsettling ambient song with an ethereal but ominous choir, accompanied by deep instruments and weird "sci-fi" noises. YMMV as always, as many players find it peaceful and relaxing rather than offputting. ''VideoGame/SuperMarioGalaxy2'', being a generally LighterAndSofter sequel, vastly reduces the use of this song, with most pipe rooms now having a [[https://www.youtube.com/watch?v=HZzBGnGr1-Y Muzak-style remix of the main theme]].

* Bigmouth Galaxy, the galaxy you're taken to by the Bedroom's Hungry Luma, takes you through a dark, underwater cave filled with a gigantic ElectricJellyfish you first see ''above your head'' while trying to swim up and around it, the above-mentioned Gringills, and [[https://www.youtube.com/watch?v=tvb8qN-lWBk a very creepy theme with harsh beats]] (which also plays in Deep Dark Galaxy) that put you on edge and may very well bring ''{{Film/Jaws}}'' to mind. Not exactly the kind of music you'd want to be swimming to, let alone in a dark cave.

* Drip Drop Galaxy, having just one short mission, also has a small world filled with Torpedo Teds, [[SeaHurtchin Urchins]], two hidden [[PainfulPointyPufferfish Spiny Cheep Cheeps]] and some penguins that ask you to get rid of some aforementioned [[SlipperyasanEel Gringills]], which are scary enough. Thing is, the planet itself could be considered a bit...off in some ways. It's a place mostly abundant with water and just two pieces of land to stand on; not to mention [[https://youtu.be/KVf-W2ioZco the eerie mysterious music of the level per se]]. Doesn't help the fact that this track is only played in this specific level and the beginning of Bonefin Galaxy, detailed below...

** When Mario or Luigi's hand rises up when he sinks in sand or toxic waste, all while hearing him drown. Oh, and even though the player can't see it, if Mario falls into a poison swamp, his head litterally shrinks down inside his neck.

** When Mario or Luigi touches dark matter, he slowly disintegrates, and his life bar isn't empty until ''after'' he is completely gone, which means [[CruelAndUnusualDeath he feels]] [[CessationofExistence the whole thing]].

* Drip Drop Galaxy, having just one short mission, also has a small world filled with Torpedo Teds, [[SeaHurtchin Urchins]], two hidden [[PainfulPointyPufferfish Spiny Cheep Cheeps]] and some penguins that ask you to get rid of some aforementioned [[SlipperyasanEel Gringills]], which are scary enough. Thing is, the planet itself could be considered a bit...off in some ways. It's a place mostly abundant with water and just two pieces of land to stand on; not to mention [[https://youtu.be/KVf-W2ioZco the eerie mysterious music of the level per se]]. Doesn't help the fact that this track is only played in this specific level...

* The main planet of Deep Dark Galaxy, found in the Garden, is pretty much a bigger version of Bigmouth Galaxy that features all of the enemies and music mentioned above, culminating in a combination of deep water, tight spaces and freaky undersea creatures that [[SarcasmMode promises a jolly time for all claustrophobes and aquaphobes]]. Depending on the mission, the beach at its entrance will have either a rather unsettling and dark, surreal sunset or a bright blue sky, which [[SoundtrackDissonance feels more than a bit out-of-place and creepy when said beach area uses the eerie version of the underground theme heard in Ghostly Galaxy]] and is surrounded by spiky rock structures.

** When your last point of health is taken away by electrical sources, Mario or Luigi [[XRaySparks turns into a skeleton]], and it shows he didn't just [[NonLethalKO get hurt]], but he's ''completely and unmistakably dead.'' This was {{bowdlerised}} in the sequel where he keeps his flesh even after dying.

** When Mario or Luigi touches dark matter, they slowly disintegrates, and his life bar isn't empty until ''after'' Mario or Luigi is completely gone, which means [[CruelAndUnusualDeath he feels]] [[CessationofExistence the whole thing]].

** When Mario or Luigi's hand rises up when he sinks in sand or toxic waste, all while hearing him drown.

[[caption-width-right:350:Think he's scary now? [[ThatOneLevel Wait until you're]] fighting [[ThatOneBoss him]] as OneHitPointWonder.]]