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The Slide (sometimes called sliding down a slope and also called Slide Attack and Slope Slide) is a move triggered by crouching on a slope. In 2D Mario platformers, it is generally used to increase the character's momentum or to knock out enemies that stand in the way. The player can also slide in 3D platformers, although in most of them it is automatically triggered upon landing on a steep slope and is intended to keep the player from accessing certain areas, rather than as a form of attack.
Super Mario series
This move first appears in Super Mario Bros. 3 and reappears in many Mario games. The character sits and slides down the hill while gaining speed (they go even faster on icy slopes); they are invincible to most enemies while sliding, though they become vulnerable again upon stopping. Also, characters can do a midair jump by sliding into midair and jumping.
Super Mario 3D World is the first 3D platformer to implement sliding as a form of attack.
Mario vs. Donkey Kong series
In Mario vs. Donkey Kong: Mini-Land Mayhem!, Mario vs. Donkey Kong: Tipping Stars and Mini Mario & Friends: amiibo Challenge, steep slopes cause the Minis to slide down uncontrollably. Sliding can sometimes be used to attack enemies, such as Shy Guys, Pokeys and Cursed Mini Marios, or dispel fragile Rock blocks. Slopes of any material (ground or Red Girder) can also attenuate long-distance falls, making the toy slide on it instead of breaking on contact. In general, Minis cannot climb uphill slopes and turn in the other direction shortly after they encounter one; however, Mini DK's Quick Climb ability in Mini Mario & Friends: amiibo Challenge allows the toy to run up slopes of any angle.
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