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Wario World is a platformer game for the Nintendo GameCube released in 2003. It is a spin-off of the Wario Land games, and marked Wario's first starring appearance on a home game console. In 2004, it was re-released as a Player's Choice title. This is the sixth platformer game starring Wario overall, and the only 3D platformer game in the Wario franchise thus far.
The game begins with Wario sitting on his throne in his completed treasure-covered castle laughing. In the lower floor, below the throne room lies an evil Black Jewel, who, thousands of years before, had corrupted any and all who owned it, causing chaos and destruction. To put a stop to this, Spritelings encased the Jewel and put it asleep for all eternity. Tragically, when Wario stole the Jewel thousands of years later, the Black Jewel soon awakened.
Wario, still drooling over his treasures and laughing back at the throne room, soon sees his castle rumble and before he knows it, the black jewel has turned his castle into a brand new world. This new world is separated into four sections: Excitement Central, Spooktastic World, Thrillsville, and Sparkle Land. Each world consists of two levels and a boss fight. The worlds are reached from a main hub area. The hub area also leads to the Treasure Square where the huge treasure box containing the black jewel is placed. Wario must travel through all worlds before going up to defeat the black jewel and lock it back in its chest where it belongs. After defeating the jewel, he regains his castle and riches.
Wario World is a 3D platformer. Each level has three objectives: beat the boss, collect all eight of the Gold Statue pieces and get all eight of Wario's Treasures back. After completing both levels in a world, the boss fight of that world will open. When the world boss is beaten, the next world opens. Wario can use several moves to defeat his enemies in various ways, such as spinning them around or slamming their head into the ground.
Each time the player collects all treasures in a world, a microgame from WarioWare, Inc.: Mega Microgame$! is unlocked. These games can only be played using a Game Boy Adapter, which connects the Game Boy Advance to the GameCube (not included with game).
Worlds and Levels
Wario World is divided into 4 worlds linked by the Treasure Square Courtyard, the hub. From the Courtyard, there are 4 worlds with two levels in each.
Wario has many moves in this game. They are:
The three Mad Moves are Wario's three most powerful moves, and can only be used after picking up an enemy first. Using them is the only way to damage many of the game's bosses.
Blocks and Collectibles in the game.
These are the enemies that will appear in every level of the game. However, their appearance will change depending on their environment. For example: They will appear normally throughout Excitement Central, but then turn into skeletons in Horror Manor, snowmen in Shivering Mountains, and then mummies in Pecan Sands.
These enemies appear in only specific areas in each level.
These enemies only appear in certain levels.
In every level but Greenhorn Forest, certain enemies will attack Wario, and not let him pass until he defeats them, essentially making themselves midlevel mini-bosses. Wario will not re-fight them when returning to the level after completing it once.
Wario has to battle numerous Boss characters throughout the game. (Italics mean level's boss, Bold means world's boss)
Wario World was a commercial success, selling over 256,000 copies in the United States of America, and over 142,000 copies in Japan. The game was re-released as part of the Player's Choice label in 2004, along with Mario Golf: Toadstool Tour. 
The game received fairly positive reviews, being praised by critics for its gameplay, but was also criticized by many for its short length. GameSpy commented that "the game offers a little beyond of what the regular tridimensional games offers, however, what is offered is short and repetitive". GameSpot stated that its length and simpleness can't hold the player's attention for more than a day. The Play magazine gave the game a perfect score, stating that "Wario World pays off every second the player holding the controller, and that is greatness". Game Informer praised the game's boss battles. IGN's reviewer, Matt Casamassina, stated that "the game is fine, but not as fine as a Mario game". 
Pre-release and unused content
References in later games