Superglide

Superglide (スーパーグライド), written as Super Glide in Kingdom Hearts Re:Chain of Memories, is an ability that appears in Kingdom Hearts, Kingdom Hearts Final Mix, Kingdom Hearts Re:Chain of Memories and Kingdom Hearts Birth by Sleep. It is an advanced form of Glide, and it allows the user to glide through the air at high speeds by pressing and holding in midair in Kingdom Hearts, Kingdom Hearts Final Mix, and the English version of Kingdom Hearts Re:Chain of Memories, and pressing and holding  in midair in the Japanese versions of Kingdom Hearts Re:Chain of Memories and Kingdom Hearts Birth by Sleep.

Kingdom Hearts and Kingdom Hearts Final Mix

 * Sora learns Superglide after defeating Chernabog at the Evil Grounds.

Kingdom Hearts Re:Chain of Memories

 * Sora learns Super Glide in the Room of Rewards in Castle Oblivion's 13th floor.

Kingdom Hearts Birth by Sleep

 * Ventus can find Superglide in a chest at the Raceway, accessible from Pete's Rec Room.