Super Mario Castle World

 is a game released on the Nintendo Ultra-64. It was known as Super Mario 64 IOTL.

Story
"Please come to the castle. I’ve baked a cake for you."

At the invitation of Princess Peach, Mario (along with Luigi) enters the Mushroom Castle.

Upon entering the castle, Mario and Luigi discover that no one is there. According to Toad, some maniacial Toad has stolen the Power Stars guarding the castle and locked Princess Peach into the walls and paintings due to jealousy & power hunger. That mysterious Toad goes by the name of Fungüse!

Now it’s up to the Mario Bros. to rescue Princess Peach and their friends from the castle’s paintings and walls!

Gameplay
The gameplay is identical to regular Super Mario 64, except this time, Mario and Luigi are here. Mario plays the same, except his punches and kicks are more powerful, letting him knock back enemies further. On the other hand, Luigi has his trademark higher jump. Wall jumps are done by jumping towards a wall, holding the joystick against said wall to slide down, and then jumping again to an adjacent wall to repeat the process. Back flips are done by crouching, then jumping. Long jumps are done by crouching, then jumping immediately. Jumping 3 times while running allows a triple jump, with each jump going higher.

Friendly NPCs

 * Lakitu Bros.: Two friendly Lakitus that act as the game's camera. One of them can be seen in the mirror room.
 * Peach: Princess of the Mushroom Kingdom She was locked away within an unknown location of her own castle by Funguse. Appears at the grounds after the final battle.
 * Toads: Friendly NPCs that hang around and give tips.
 * Daisy: Princess of Sarsaland. She too was locked away by Funguse in a trap that he set that led to the Fire Sea. Found in the mirror room after the final battle.
 * Bob-omb Buddies: Red peaceful Bob-ombs born without a fuse. One of them hangs around in certain levels to open up a cannon.
 * Boo Buddies: Friendly Boos held captive by their hostile brothers. They are colored blue opposed to the white of enemy Boos. Saving enough grants a Power Star. Other than that, they give information on the rooms of Big Boo's Haunt.
 * Blaarg Buddies: Friendly Blaargs that defected from their hostile counterparts and willingly carry Mario and Luigi around Lethal Lava Land. They are colored yellow opposed to their former brothers which are red. However, these ones can be attacked by enemy Blaargs, but press the punch button to attack back.
 * Koopa the Quick: A large and friendly Koopa Troopa that loves to challenge people to a race. Beating him grants a Power Star.
 * Hoot the Owl: An owl that resides in certain trees. Can carry the player for a limited time before dropping them.
 * Penguins: Residents of Cool Cool Mountain. One of them challenges others to race for a Power Star. Another lost her baby. Bring the right one and you get a Power Star.
 * Snowmen: One is small and got his head and body separated. Another is the size of a mountain. Both have Power Stars.
 * MIPS: Peach's pet rabbit who runs down the halls. Catch him to get a Power Star.
 * Dorrie: The friendly Plesiosaur from Super Mario World. Steer him and ground pound his back to climb on his head.
 * Ukikis: Grab these monkeys and the player loses their cap, which makes Bob-omb, Boo, and Blaarg Buddies hostile due to being unable to recognize Mario or Luigi without the cap. Grab them again and the cap is returned. One of them has a Power Star.
 * Bowser: After defeating him, he'll appear outside the castle watching the skies.
 * Yoshi: The friend above the castle. Get 120 stars first.

Powerups

 * Coin: Restores 1 health bar. Red variants restore 2 health bars and grant a Power Star upon collecting all 8 in a level while blue variants are found via ground pounding certain blocks or defeating certain enemies and they restore a lot of health.
 * Spinning Heart: Run through it to regain a lot of health depending on how fast you enter it.
 * 1-Up Mushroom
 * Shiny Shell: Jump on Koopa Troopas and they lose their shell. Hop on the shell to ride it above ground and lava until a wall is hit.
 * Wing Cap: Found in Red Blocks, lets player fly for some time.
 * Vanish Cap: Found in Blue Blocks, lets player pass through certain cages and past enemies for some time.
 * Metal Cap: Found in Green Blocks, grants player immunity to hazards and allows normal platforming underwater instead of swimming for some time.

Each cap powerup is unlocked by beating certain secret courses.

Courses
Same as IOTL, the hub world is Princess Peach’s castle. So here’s a list of courses to go through.

Section 1/Main Floor

 * Bob-Omb Battlefield - Same as OTL
 * Whomp’s Fortress - Same as OTL
 * Jolly Roger Bay - Same as OTL
 * Goomba Woods - A forest course filled with Goombas, Goombrats, Galoombas, and Goombuds. The boss of this course is Goomboss.
 * Cool, Cool Mountain - Same as OTL
 * Motos’ Magma Temple - A course that resembles Marble Zone (Sonic the Hedgehog 1), and it includes the unused Motos enemies from OTL.
 * Bowser in the Dark World (Twelve stars are needed to go to stage) - Same as OTL, except Bowser’s tricked by Fungüse into fighting Mario (or Luigi, or both).

Section 2/Basement + Garden

 * Big Boo's Haunt - Same as OTL, but with some friendly Boos you need to rescue.
 * Hazy Maze Cave - Same as OTL
 * Cue Ball Chaos - A course that’s set in a land resembling a pool table of all locations.
 * Lethal Lava Land - Same as OTL, except the unused Blaarg enemies from OTL are included, but some of them are friendly and you get to ride on them. Also, another difference is that there are more areas inside the volcano.
 * Shifting Sand Land- Same as OTL, but the pyramid has a bit more to explore.
 * Dire Dire Docks – Same as OTL.
 * Fiery Reptile in the Fire Sea (was known as Bowser in the Fire Sea IOTL) (Thirty stars are needed to go to stage) - Same as OTL, except the boss of this stage is Salamandragon (Half-salamander, half-dragon). Also, another difference is that before you go there, you have to fight Wario (or Waluigi if you’re Luigi) in a caged arena.

Section 3/Upper Floor
And the rest of the courses stay the same as OTL.
 * Snowman’s Land - Same as OTL
 * Wet-Dry World - Same as OTL
 * Tall, Tall Mountain - Same as OTL
 * Tiny-Huge Island - Same as OTL but with more old-school Mario enemies like Fuzzies and Buzzy Beetles.
 * Tick Tock Clock - Same as OTL
 * Rainbow Ride - Same as OTL
 * Final Battle in the Sky (was known as Bowser in the Sky IOTL) (Seventy stars are needed to go to stage) - Same as OTL, except the boss of this stage is Powered Fungüse (which is Fungüse transformed into a Bowser-like creature).

Enemies
Most enemies will now follow Mario and Luigi upon seeing them.


 * Goomba (With Big and Mini (Goombettes) versions)
 * Koopa Troopa (Similar to SMW): This time, their shells can be ridden until the player hits a wall.
 * Piranha Plant: Don't wake them up or they'll be biting away.
 * Fire Piranha Plant (Has a small variant)
 * Lakitu
 * Spiny
 * Swoop: This time, they loop horizontally.
 * Thwomp: This time, touching their sides and top does not harm the player, but the bottom can still hurt them.
 * Bullet Bill + Cannon
 * Cheep Cheep/Bub
 * Boo: Can be ground pounded when visible, but they are invisible (and stationary) upon looking at them now. One of them in the garden has the entrance to Big Boo's Haunt.
 * Chain Chomp: Now large with posts that can be ground pounded.
 * Monty Mole: This time, they act like Rocky Wrenches, except they throw rocks instead of wrenches.
 * Lava Bubble
 * Bob-omb: Upon sight, it ignites itself and follows the player.
 * Fuzzy
 * Buzzy Beetle
 * Blaarg
 * Big Steely
 * Floating Mines: Can damage Bowser, Salamandragon, and Funguse.
 * Shy Guy
 * Fly Guy
 * Snifit
 * Pokey
 * Amp
 * Bookend
 * Cheep Chomp/Bubba
 * Bully
 * Butterfly (Some of them give 1-Ups when punched while others transform into bombs when punched)
 * Keronpa Ball/Flame Chomp
 * Amp: An electric ball
 * Bookend: Haunted books that act like darts.
 * Bully: Pushes you off the platform.
 * Haunted Chair: Floats in the air and whacks the player.
 * Chuckya: Throws the player.
 * Clam: A trap with a 1-Up inside.
 * Flamethrower
 * Fwoosh: Blows trespassers to their doom.
 * Grindel/Ancient Thwomp: Thwomp's desert grandfather.
 * Heave-Ho: Learned their ways from Chuckya, except upward.
 * Klepto: Cap thief bird.
 * The Mad Piano: The "pet dog" of King Boo. Looks like a normal piano, but it bites those who approach.
 * Money Bags: Defeat it for coins, but it is elusive.
 * Motos: A robot that acts like a combination of Bully and Chuckya. It has a dash attack that can push the player off platforms in 1 punch, which takes 30 seconds for it to recharge. During recharge, it can throw the player when it gets close enough.
 * Mad Cue Ball: Living cue balls who are busy playing a game of pool. If the player approaches them, they attempt to squish them by retracting their arms and legs and rolling since they think the player is attempting to disrupt their game. However, punching them in the face (which has the number on them) stuns them for a minute.
 * Galoomba
 * Goombrat
 * Goombud
 * Moving Bars: Harmless sentient stones that loves to move in and out of walls.
 * Mr. Blizzard: Evil snowmen that throw snowballs at the player.
 * Mr. I: A giant eye that shoots at the player. Run around it to defeat it.
 * Scuttle Bugs: Giant spiders that walk around.
 * Skeeter: Scuttle Bug's water-loving rival.
 * Snufit: Snifit ghosts from the past.
 * Spindel: Grindel's round brother, except it rolls on the ground.
 * Spindrift: A passive flying enemy. Jumping on them triggers a spin jump, letting Mario or Luigi get to new heights and go down safely.
 * Sushi: A passive shark that loves swimming in circles. Get in their way, and they bite.
 * Tox Box: Spindel's other brother, except square. One side of each of them has an opening to a safe spot which guarantees that the player will not be crushed when it is moving.
 * Maw-Ray/Unagi: A giant eel that made its home in a pirate ship underwater. It can be lured out and not reenter the ship.
 * Whomp: Thwomp's flat cousin. It walks around and upon seeing the player, it jumps and falls on its face, exposing a spot that can be ground pounded to defeat it.

Bosses

 * 1) King Bob-Omb: King of the Bob-ombs. Go behind him, pick him up, and throw him a few times. After so, he says that he will return for a rematch.
 * 2) Whomp King: The giant king of the Whomps. Attack him the same way Mario and Luigi do to regular Whomps. Difference is that he needs to be struck thrice and his range of flattening is bigger.
 * 3) Goomboss: The large king of the Goombas. Summons Goombas for protection. Punch them towards their king. After he takes 3 hits, he summons the larger variant of Goombas, which take 3 punches to knock away. After getting hit by a large variant, the pattern repeats. After 3 loops, he is defeated.
 * 4) Bowser: The king of the Koopas tricked by Funguse. He attacks by stomping and breathing fire. Defeat him by picking him up by the tail and then throw him at the floating mines for a certain number of times. Afterwards, he realizes the truth and gives the player the key to the Basement.
 * 5) King Boo: Back for revenge, the ghost king has new tactics up his sleeve. He can summon Mr. Is to shoot while he sends down ghost fire. Defeat him by throwing Grab Blocks at him when he gets to ground level.
 * 6) Big Mr. I/Unblinking I: Identical to a Mr. I, except bigger and can shoot triple shots. Run around him, then run the opposite direction. Do this thrice and he is defeated.
 * 7) King C. Ue Ball: The king of Cue Ball Chaos. He pretty much thinks that the player is attempting to ruin the game of pool. He attacks the same way as the Mad Cue Balls, but his rest rate is much shorter, which is 10 seconds. After the cooldown, he summons a Mad Cue Ball to attack alongside him. After attacking him 3 times, he calms down and gives the player a "thank you" for a challenging fight.
 * 8) Big Bully: Exactly the same as a regular Bully, except bigger and harder to knock off the platform. There are 2 of them that reside in Lethal Lava Land.
 * 9) Eyerok: Shifting Sand Land's guardian. Its hands attempt to knock the player off the platform. However, each hand has an eye in its palm. When said eye is exposed, it needs to be punched 5 times to destroy a hand. Once both hands are destroyed, Eyerok falls asleep and becomes a dormant statue.
 * 10) Wario/Waluigi: Both are under the spell of Funguse to guard the Fire Sea, and the battle takes place in a caged arena. Wario fights Mario while Waluigi fights Luigi. Both of them throw bombs, punch, kick, and even attempt to stomp the player. Both of them have the same properties as the Mario Bros. (with Wario having stronger punches and kicks for knockback while Waluigi has higher jumps for unpredictability. They need to be hit 5 times. Afterwards, they snap out of the spell and the portal to the Fire Sea opens.
 * 11) Salamandragon: An ancient wingless fire-breathing dragon resurrected by Funguse. Its tail is to be grabbed and then it is to be thrown to the mines. However, Salamandragon can shoot fire in 3 directions and tip the arena by ground pounding.
 * 12) Chill Bully/Chief Chilly: The king of cold. He acts the same as the Big Bullies, except the lava is now replaced with water so cold that it acts like lava. Defeat him the same way a Big Bully is defeated, but knock him into the freezing water thrice.
 * 13) Giant Wiggler: The only Wiggler to reside within Tiny-Huge Island. His temper rose when the player accidentally flooded his home. Stomping his head twice makes him go faster and the 3rd stomp calms him down, shrinks him, and he leaves the arena.
 * 14) Powered Fungüse: Infused with the Power Star that keeps Peach locked away within her castle, the Toad behind this has been transformed into a monster that resembles a hybrid of a Toad and a Koopa. His attack style is similar to a combination of Bowser and Salamandragon, along with shockwave stomps and making the arena fall apart. He is defeated the same way, which is grabbing him by the tail and then throwing him to a mine.