Jump (ジャンプ Janpu) is an ability introduced in Kingdom Hearts. Jump allows the player character to leap into the air; outside of combat, the other party members will follow suit. Jump appears in every game, and is always a default ability.
Mechanics
In Kingdom Hearts, Jump can be used by pressing 
(
in the Japanese and Final Mix version).
In Kingdom Hearts Chain of Memories, Jump can be used by pressing 
.
In Kingdom Hearts Re:Chain of Memories, Jump can be used by pressing ( in the Japanese version).
In Kingdom Hearts II, Jump can be used by pressing ( in the Japanese version).
In Kingdom Hearts 358/2 Days, Jump can be used by pressing .
In Kingdom Hearts Birth by Sleep, Jump is a movement command that can be used by pressing , in the Japanese versions.
In Kingdom Hearts Re:coded, Jump can be used by pressing . Alternatively, keeping hold of 
as Data-Sora approaches a ledge activates Auto-Jump, which makes Data-Sora automatically jump up or across, depending on the context.
In Kingdom Hearts 3D: Dream Drop Distance, Jump is a movement command that is used by pressing .
In Kingdom Hearts III, Jump can be used by pressing ( in the Japanese versions) while on the ground.
In Kingdom Hearts Melody of Memory, Jump can be used by pressing ( in the Japanese versions).