In Spyro the Dragon, the player can get a little extra height by pressing the Charge button. In Ripto's Rage! and Year of the Dragon, Spyro can hover in mid-glide by pressing the Triangle Button. This is used to get an extra boost of height at the end of your glide, or stop a glide immediately. In Spyro: A Hero's Tail, Spyro glides at the end of a double jump, but can not hover. Spyro can glide in all spin off games, except Spyro Orange: The Cortex Conspiracy, in which the glide is replaced with a double jump/flutter move, which is earned in the first world.
The Legend of Spyro series
Spyro retains his gliding ability in The Legend of Spyro: A New Beginning and The Eternal Night. While the glide is still present in Dawn of the Dragon, the fact that Spyro can fly at anytime makes the ability unnecessary.