Super Mario World: Super Mario Advance 2

Super Mario World: Super Mario Advance 2 (known in Japan as simply Super Mario Advance 2, スーパーマリオアドバンス2 Sūpā Mario Adobansu Tsū) is a remake of Super Mario World made for the Game Boy Advance and developed by Nintendo Entertainment Analysis and Development (EAD). It is the second title in the Super Mario Advance series and was released in Japan on December 14, 2001, in North America on February 11, 2002, and in Europe and Australia in April 2002. There are numerous gameplay, visual, and level design changes from the original game, but the most noticeable alteration is making the game for one player only instead of two. However, Luigi was still usable, but this time as an alternate character who jumps higher than Mario, but runs slightly slower.

The game was successful, selling over 5,460,000 copies worldwide, with at least 3,290,000 copies in the United States. The Mario Bros. classic game has been included in the game (like the other Super Mario Advance games), with multiplayer. Super Mario World: Super Mario Advance 2 was re-released on the Wii U's Virtual Console in Japan on April 3, 2014, and in North America on December 25, 2014, and in Europe and Australia in March 2016.

Gameplay and premise
The gameplay and plot are the same as in the original version of Super Mario World for the Super Nintendo Entertainment System. Players take control of either Mario or Luigi, adventuring through Dinosaur Land to foil the evil King Bowser and his Koopalings, who have kidnapped Princess Peach (formerly known to the Western world as Princess Toadstool) and imprisoned seven of the native Yoshis in eggs. Players navigate through the game's worlds via an overworld map featuring paths connecting to action panels, Fortresses, etc. The playfields of the levels are populated with obstacles and enemies, with the player traversing the stage by making use of basic techniques from the NES Mario titles, like running, jumping, swimming, dodging, and defeating enemies; and those new to the original Super Mario World, like the Spin Jump.

The same power-ups from the original release are retained, including the basic power-ups of the Super Mushroom, Fire Flower, and Starman; and the Cape Feather, introduced in the original game. The Super Mushroom increases Mario or Luigi's size; the Fire Flower gives him a fireball attack; the Starman makes him invincible; and the Cape Feather allows him to fly and to attack enemies by spinning. Also returning is Yoshi, the Mario brothers' sidekick and riding mount from the original Super Mario World, who is able to eat most enemies and gain special abilities from holding colored Koopa shells in his mouth. The game also contains blue, yellow, and red Yoshis, which become available to Mario and Luigi from any level in the game after he has found their eggs in Star World and fed them enough enemies to grow them to maturity. When holding any Koopa shell in his mouth, these Yoshis gain the ability that corresponds to its own color, in addition to that of the shell.

Outside of the main mode of play, players may also play a remake of the Mario Bros. game, included in all other games in the Super Mario Advance series, which supports anywhere from one to four players.

Changes from the original game
Super Mario Advance 2 contains many gameplay and visual changes from the original Super Mario World. These include the addition of a status menu allowing players to check how many levels they have played and whether they have collected all the Dragon Coins in a given level, adding Dragon Coins to levels that did not have them (such as Ghost Houses and Fortresses), raising the maximum life count to 999, updating the save system to allow players to save at any time, enabling players to jump off enemies they originally could not, locking the Fall event until the player has cleared all 96 levels, minimal level design alterations, the addition of a pre-title introductory cinema scene, and altering certain graphics (notably Princess Peach's sprites and Yoshi and Bowser's arm colorations) to be more consistent with official character designs. Digital voice acting is contributed by Mario's famed voice actor Charles Martinet, with a combination of new voice clips and those ripped from the first Super Mario Advance game.

The most noticeable alteration, however, is the removal of the original two-player feature, making the game for only one player. Because of this, Luigi is reworked as an optional character, who can be swapped out with Mario by pressing on the world maps. As in the special compilation cartridge Super Mario All-Stars + Super Mario World, Luigi has his own sprite set independent of Mario's; however, this one is based on the appearance of his sprites in the first Super Mario Advance. In addition, he plays differently from Mario in several ways. Luigi jumps higher but more slowly than Mario, and scuttles in midair as he jumps, but he suffers from worse traction and lower running speed than his brother. When Luigi flies using the Cape, he flies slightly higher than Mario, but not as fast; and Fire Luigi's fireballs bounce higher than Fire Mario's. When Luigi is riding him, Yoshi does not instantly swallow enemies; instead, he can spit them out and use them to attack other enemies, automatically swallowing them after a brief amount of time. Finally, if Luigi hits a Coin Block, all of the coins inside it will spill out of the block at once instead of collecting them one by one.

Development
Super Mario Advance 2 has considerably less significant differences from the game it ports than the first Super Mario Advance. To correspond with the GBA's technical inferiorities to the SNES, the developers reduced the display resolution, brightened the original color palettes, and compressed the soundtrack. As shown in published screenshots, an early build retained the original game's HUD, which was altered in the final to fit in better with the GBA's screen resolution. Even the original test levels were left in the game; they can be accessed via a glitch (see below).

The game was produced by Mario creator Shigeru Miyamoto, and directed by Hiroyuki Kimura with supervision from original SNES directors Takashi Tezuka and Toshihiko Nakago. The new graphics were designed by Emi Tomita, and the new audio cues were composed by Yasushi Ida and Taiju Suzuki.

Glitches
These glitches only occur in Super Mario World: Super Mario Advance 2. For a list of glitches that are exclusive to the original Super Mario World or occur in both versions of the game, see here.
 * After having found all 96 exits, the player can simultaneously press a button and  to trigger the status screen, then choose a level and move in an incorrect way going to an incorrect level. Pressing  will result in no response, an endless Bonus Game, an actual level, or an inaccessible level like the intro level. Some levels (i.e. #2 Morton's Plains) if beaten will glitch the game drastically if the normal exit is taken or revert to the original overworld if the secret exit is taken. For some reason, getting more than 96 exits through this glitch reverts the overworld back to the normal overworld and saving is fatal. Through this glitch, it is possible for the player to access a test level and unused intro from the original game by going to Star World 3, pressing right on the  and  simultaneously, and selecting the second Star Road on the list at the level screen.
 * If Mario/Luigi is riding Yoshi with 999 lives, the player may enter a level with possibly at least a 1-Up Mushroom (i.e. Yoshi's Island 2) that was already beaten, stick Yoshi's tongue to the 1-Up Mushroom, and rapidly press when Yoshi's mouth is full. Upon returning to the map screen from the pause menu, the player's life counter shows up as Y00 (1000). This glitch is temporary and the life counter resets if the player enters another level.
 * After completing the game, Mario and Luigi should return to the flattened Yellow Switch Palace, then the player must very quickly press and down on, then select Chocolate Island 3. From there, Mario or Luigi will begin a winding trek back to the flattened Yellow Switch Palace, however it will display Chocolate Island 3's name instead of "Yellow Switch Palace". Upon pressing , Mario or Luigi will be able to re-enter to the Yellow Switch Palace. It should be noted that after returning here, the Yellow ! Switch will not be found at the end as it has already been pressed. Therefore, Mario or Luigi must manually exit the level since there is no other way out.