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Sonic Rush Adventure
Hidden Island 13

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Hidden Island 13 is one of the sixteen Hidden Islands in Sonic Rush Adventure. Iron and Aqua Materials can be earned by completing this stage. Hidden Island 13 can only be unlocked by locating it on the game's Sea Chart.


Hidden Island 13 shares Blizzard Peaks' design. It is a frozen island covered entirely in snow, and is surrounded by icebergs and icy peaks. The island has many (rather sharp) snowcapped black-stoned mountains whose upper peaks breach the white clouds obscuring the blue sky. Along the mountainsides, pure and often colorful ice structures form winding roads, paths, icicles, crystal clusters, symmetric blue ice pillars and spiky ice formations resembling pine trees.


Hidden Island 13 is located northwest of Hidden Island 16, in the upper left corner of the game's Sea Chart.


Like most other Hidden Islands, Hidden Island 13 is a short stage which can be finished in less than a minute. However, it does not focus on a certain gameplay style or gimmick.

Hidden Island 13 features a few gimmicks exclusive to Blizzard Peaks. Most of them are snow-covered ice sheets that bounce the player into the air like Springs upon contact. However, they have to be touched from above or on the side. There is also a half-pipe that keeps the player sliding back and forth through it down its entire length. The player can use Trick Actions when launched into the air by the half-pipe or use the Humming Top/Jump Step to skip large sections of it.

Obstacles in this stage include an avalanche that will follow the player for a while and take away a life if they touch a character, and ice cubes. The latter can be destroyed with a Spin Jump/Axel Jump or Super Boost/Fire Boost.


At the beginning, follow the path to some ice sheets. Use them to reach the upper ledge and follow the path to the top. The player can then either ride a Grind Rail above or follow the path along the bottom and use ice sheets to reach another path. Either way, the player will reach another peak where they again can either use a Grind Rail above or follow the path along the bottom. Regardless, the player will end up on the path leading to a series of ice sheets that must be used to scale a cliff.

At the top of this cliff, the player must outrun an avalanche. Afterwards, the player will pass through a series of gimmicks that lead to a few enemy-ridden ledges. After getting past them, the treasure chest will be in sight.


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