This guide will tell you how to fly with Bomb Fruit in One Piece Legendary. Go through the guide, and you will learn what skill you will need to fly with bomb fruit.
First, you need to get the bomb boost skill. You need to have a 50 lv melee to get this skill. 
There’s one thing you need to know about this skill; this boost follows your mouse cursor.
You just have to put the mouse cursor on the top of the screen and then spam x. There might be a problem that you can’t see where you are landing. And here’s how to solve it.
When you can’t see where you are landing, you will need to put your cursor a little down and press E to dash; it can increase your speed.