[[caption-width-right:307: ''[[AcrophobicBird Dang it Mickey, you know ducks hate flying!]]'']]

''World of Illusion: Starring Mickey Mouse & Donald Duck'' is the 1992 sequel to ''VideoGame/CastleOfIllusion'' developed once again by Creator/{{Sega}}. It featured the titular duo being trapped in a magical world and their attempt to escape.

The story begins with Mickey and Donald practicing for their upcoming magic show. Donald accidentally stumbles into a mysterious box and proceeds to investigate further despite Mickey's reservations. The two step into the box and find themselves sucked into a strange land. An evil wizard informs them they have fallen into his trap and must learn a few new tricks if they are to stand a chance of finding and defeating him. And so the duo battle their way through Disney inspired lanscapes to try and find a way home.

Gameplay was similar to the ''VideoGame/CastleOfIllusion'' but without throwing projectiles and featuring co-operative play, more levels, better sound and graphics. Able to play as either Mickey or Donald solo, the game was actually slighty different depending on what character the player chose to control (Donald's solo levels are a bit harder than Mickey's solo levels). It even had unique co-op sections (2-player mode only).

''World of Illusion'' is also the first video game in which Mickey and Donald are both voiced, by Disney regulars Wayne Allwine and Tony Anselmo no less, even though the only things they say are, "Alakazam!", "Ouch!" and "Wow!"
!! This Game Provides Examples Of:
* AmericanKirbyIsHardcore: Inverted weirdly in the [[http://24.media.tumblr.com/b007096076eb6a03dd9f25cac256348a/tumblr_mg4maqXfTq1qzj5ggo1_500.jpg Japanese cover]]. Donald is really happy and reaching for ''something'' while Mickey looks really annoyed about it.
* AnAsskickingChristmas: One portion of the fourth level is set around a Christmas tree and decorations, with Mickey and Donald fighting evil Jack-In-The-Boxes.
* AnotherSideAnotherStory: Not only do both Mickey and Donald have exclusive level acts, but there's a third set of levels for the 2-player mode.
* BalefulPolymorph: Mickey and Donald's only means of attack.
* BigNo: When you fall down a BottomlessPit.
* BossRush: In two player mode, this is given after the first segment of the final level. But here, it's more of a ''level'' rush with the duo replaying segments from the previous levels.
* CoOpMultiplayer: A lot of novel ideas in this area for the time. When playing together, co-operation was required to squeeze through trees, lower ropes after giving the other player a helping hand up, and timing jumps to move a see-saw cart through a mining cavern.
* ExactlyWhatItSaysOnTheTin: When Donald enters the world inside a book in Level 4, he finds enemies made out of their name's letters.
* FriendOrFoe: Players can attack each other in Co-Op, causing Mickey and Donald to get hilariously stunned.
* GoldenEnding: If two players beat the game in Co-Op, both Mickey and Donald play their magic acts from their individual endings one after another.
* HelpImStuck: There are a few parts in the game where Donald can get stuck, and Mickey has to pull him through. One part in Level 3 requires him to literally leave an area just because he couldn't fit through a gap that Mickey could get through.
* HumanLadder: A standard in Co-Op on this game.
* LevelAte: The giant cookie box segment at the end of Level 4.
%%* LongTitle
%%* MagicalLand
* MagicalMysteryDoors: Donald has to go through a maze in his version of the final level.
* MinecartMadness: One of the levels in co-op.
* NonLethalKO: Mickey and Donald don't kill their enemies. They simply turn them into more harmless forms with a wave of their magical cloaks.
* NoobBridge: The first level has a vertical section with ramps. In single-player mode, these ramps have weights which allow the player to reach the top with ease. In two-player mode, these weights are gone, forcing the players to cooperate for the first time: one player is used as the weight, then the other drops a rope to help the "weight" reach the next tier.
* OxygenatedUnderwaterBubbles: Mickey and Donald travel underwater inside one during Level 3. [[JustifiedTrope Justified]] because they're bubbles formed by magic.
* ShoutOut: Filled with a variety of Disney locations, characters and music.
** The opening has the dark music from ''Disney/SleepingBeauty'' when they discover the magic box.
** The Caterpillar from ''Disney/AliceInWonderland'' can be seen in the foreground on the first level.
** The "Heigh-Ho" theme music from ''Disney/SnowWhiteAndTheSevenDwarfs'' whilst going through spider filled cavern. Also with all the glittering gems in the background it's probally based on the mine the dwarves work in.
** You fight a shark in a sunken ship wreck in Level 3 much like ''Disney/TheLittleMermaid''.
** Once you jump out of the fishbowl, you can see a fimilar fish inside it: [[Disney/{{Pinocchio}} Cleo]]. Cleo also appears a few times through Level 3.
** [[Disney/TheSwordInTheStone Madam Mim]] is the boss of Level 4, fought in the Cookie Box segment.
** The beginning of Level 5 is pretty much dominated by ''Disney/AliceInWonderland'' references, from the level design and music to the playing card guards and the strange Mad Hatter chess pieces chasing you.
* {{Stage Magician}}s: What our heroes were practicing for before being trapped in another land. [[spoiler:They return to reality just in time for a performance]].
* SecretTestOfCharacter: The duo are apparently being tested by the wizard who summoned them. Over the course of their journey, they learn new magic, and he seems quite happy to have been defeated.
* SpiritualPredecessor: for ''Franchise/KingdomHearts'', mostly because the artwork and animation shows influences from classic Disney animated films (similar to the ''Kingdom Hearts'' series), including; ''Disney/TheLittleMermaid'', ''Disney/TheSwordInTheStone'', ''Disney/AliceInWonderland'', and ''Disney/{{Pinocchio}}''.
* StealthMentor: It seems the wizard who brought them to his world wanted them to become better magicians than even himself.
* SuperDrowningSkills: You die (sorry, [[NeverSayDie lose a try]]) if you fall into water during most areas that contain it.
* SuperNotDrowningSkills: The characters learn a spell to create an air bubble around them so avoid this during the Underwater level. However, when they are out of the water, falling into water still kills them.
* TrappedInAnotherWorld: What happens to the main duo, forcing them to fight through a variety of different worlds just to return to the real world.
* UnderTheSea: A level takes place in what turns out to be a gigantic fish bowl.
* VileVillainSaccharineShow: The FinalBoss, [[spoiler:Pete in his ''Disney/MickeysChristmasCarol'' incarnation]], is significantly darker than the rest of the game. However, subverted that he only looks seriously menacing, but means well. See SecretTestOfCharacter.