52e0a756_Story_database_anyone_can_edit__Description
[Name] Cannon Jump [Type] Active [Description] 
Fires the cannon at the ground, and uses the recoil to jump high into the air. As you jump up into the air, nearby enemies will take damage. You can use it mid-air with the Up key + jump key.
Path of the Cannon - MapleWiki - the free MapleStory database anyone can edit
Description