Donut Plains

Donut Plains is the second world of Dinosaur Land in the game Super Mario World. It has a plains theme. The first Ghost House of the game, as well as the first course with multiple exits, is located in this world, and the Cape Feather is also introduced. The Top Secret Area located here can be visited multiple times for various power-ups, including Yoshis. The name of this world hints at the strange shape of the island (which looks indeed like a doughnut, when seen from above), although the overall theme of Dinosaur Land areas is being named after foods. The Donut Plains is ruled by Morton Koopa Jr. in the second castle, and is reached only after defeating Iggy Koopa in the first castle in the previous world, Yoshi's Island.

The Donut Plains later reappears as a series of courses in Super Mario Kart, which are later reused in Mario Kart: Super Circuit. Donut Plains 1 later reappears in Mario Kart DS while Donut Plains 3 reappears in Mario Kart 8.

Levels
Levels that are marked with an asterisk (*) feature a secret exit.
 * Donut Plains 1*
 * Donut Plains 2*
 * Donut Ghost House*
 * Donut Plains 3
 * Donut Plains 4
 * #2 Morton's Castle
 * Green Switch Palace
 * Top Secret Area
 * Donut Secret 1*
 * Donut Secret House*
 * Donut Secret 2

Enemies

 * Donut Plains 1
 * Super Koopa
 * Chargin' Chuck
 * Volcano Lotus
 * Koopa Paratroopa
 * Jumping Piranha Plant


 * Donut Plains 2
 * Buzzy Beetle
 * Swooper
 * Chargin' Chuck
 * Spike Top


 * Donut Ghost House
 * Boo Buddy Swarm
 * Boo


 * Donut Plains 3
 * Koopa Troopa
 * Koopa Paratroopa
 * Fuzzy


 * Donut Plains 4
 * Beach Koopa
 * Galoomba
 * Koopa Troopa
 * Jumping Piranha Plant
 * Koopa Paratroopa
 * Amazing Flyin' Hammer Brother
 * Flying Goomba
 * Paragoomba


 * #2 Morton's Castle
 * Thwimp
 * Ball 'n' Chain
 * Thwomp
 * Lava Bubble
 * Dry Bones


 * Green Switch Palace
 * Beach Koopa
 * Koopa Troopa


 * Donut Secret 1
 * Rip Van Fish
 * Cheep-Cheep
 * Blurp
 * Koopa Paratroopa


 * Donut Secret House
 * Circling Boo Buddies
 * Eerie
 * Big Boo
 * Boo


 * Donut Secret 2
 * Koopa Troopa
 * Spike Top
 * Koopa Paratroopa
 * Muncher
 * Jumping Piranha Plant

Trivia

 * In the text that follows the cutscene pertaining to Iggy's defeat, Donut Plains is erroneously called "Donut Land".