Cookie Mountain is a level in World 4 (Twin Bridges) in Super Mario World. The player will encounter large swarms of Monty Moles in this level. Completing this stage gives access to Ludwig's Castle. This level also features the Sumo Brother, an enemy which stomps the ground to create a fire obstacle in Mario's path. They cannot be stomped, but they can hit from below or cape-spun to be destroyed. Yoshi can also be found, but only if the player has previously hit the red switch in the Red Switch Palace.
At the beginning of Cookie Mountain, the player encounters a Beach Koopa sliding down a hill, followed by two Monty Moles. After crossing a short gap, the player encounters a Sumo Brother who stomps, causing fire to spring up beneath his platform. There is also a Monty Mole beneath the platform. The next section has five slanted platforms: the first slanted away from the player, and the rest slanted towards them (there are also sliding Beach Koopas on the second, forth and fifth platforms). The player also finds the first Dragon Coin above the second slanted platform. After progressing upwards, the player sees a staircase-like structure with four Monty Moles who jump out. Afterward, if the player is Cape Mario (or an impressive jumper), flying up leads to a cloud platform where a 1-Up Mushroom is obtainable. If the player opts to go below, the next 'mountain' contains another four Monty Moles who jump out in quick succession. The level begins to get difficult here as the player must maneuver past two hard-to-reach Sumo Bros. and a Monty Mole below (the second Dragon Coin is easily noticeable below the first Sumo Brother). After a Jumping Piranha Plant, the Midway Gate appears.
A very large mountain up-ahead has 4 Monty Moles emerge if one stays to the ground and another two if they climb the vine upwards (located in third block to the near right). If the player decides to use this vine, they will find the third Dragon Coin, plus a 1-Up atop the mountain. Soon following the blue pipe, there is a Monty Mole and an ? Block surrounded by two ♪ Blocks. The player can only obtain the Yoshi within if the red blocks are activated from the Red Switch Palace, since this is the only way to hit the blocks below. There are three mini-mountains ahead containing a total of four Monty Moles and the fourth Dragon Coin atop the second mountain. If the player manages to find the Yoshi, they will be able to obtain a Power-Up of any choice from the box located at ground level. The second of three silver pipes contains a Jumping Piranha Plant, which may or may not be an issue (depending on Power-Ups and skill level). The final Dragon Coin is above either a gap or green blocks, depending on the status of the Green Switch Palace, followed by a small platform and either another gap or red blocks.
The upcoming section has two Sumo Bros. on two levels of Item Blocks, both attempting to hurt and/or halt the player. Finally, the player needs to defeat a Chargin' Chuck and arrive at the Giant Gate.
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