How to get high jump in kingdom hearts 1?

ok i need the high jump ability to beat monstro. im on level 51 and i dont have it. Is there something you need to do first or a certain level you need to get to to get it? help plz?|||Easy one. Go to the boat where Geppetto and co. are located. You'll see a chest there. Open it and you'll have your High Jump. To equip it, go to "Shared Abilities" in the Abilities section on the menu and put it on.|||After you beat the first Parasite heartless that has Pinocchio then you go back to the boat you first met Gepetto on. Then, I'm pretty sure there is a small cut scene with Riku in it then you open up a chest that appears on the boat. Next go to the menu and go to abilities. Finally, go down to shared abilities and High Jump should be there.