Wonderking and Maplestory. Battle of the games.

Phantom, Mercedes, Angelic Buster, All adventurer thieves, Kaiser, Xenon, Wild Hunter, Corsair, Cannoneer and a bunch of jobs double jump with the press of jump twice O_o

No, those classes uses a special skill (like jag jump, fire blast 'or something'). if you'd check their classes with the beginner or first job tab, it's a skill they learn. i mean like vanilla (what i mean by that is NO skills needed to jump twice or any special thing needed. Just like a beginner, they cant double jump because they have a skill used