Jumping is an action by a player to reach higher platforms. To jump, press the 'A' button to jump, and tap the "A" button again while in mid-air to double-jump in order to get up to even higher platforms in the game.
If timed correctly, one can jump up to three blocks high instead of the usual two block height. This is accomplished by careful timing pressing the jump button twice.
If a gravity zone is in place, this can make jumping higher or lower, depending on how "heavy" the gravity zone pulls on the player.
"Parkouring" is a common use of the jumping mechanic on the Challenge gametype. Players would be required to jump from one platform (usually either single blocks, ramps, or fences) to another. Mastering the three-block-high jump is crucial.