In One Piece Odyssey Sanji’s experience and skills will be taken from him. In order to get them back, you’ll need to locate 40 cube fragments scattered around Waford Island. Below is a guide on where to find his cube fragments in Dressrosa. You’ll receive the Cube Collector: Sanji trophy/achievement for finding all of his cube fragments.
Dressrosa City Area
Foot of New Royal Plateau
This cube can be found down the road west of the save point.
Coliseum Path
This cube can be found in a ruined house southeast of the Coliseum.
New Royal Plateau: Bottom
2nd Level – War Plateau
This cube can be found in some rubble directly south of the Yoisa Travel Sign.
2nd Level – Destroyed Royal City
This cube can be found on the ground in the southern part of the area close to a save point.
3rd Level – Foot of Flower Hill
In this area, you’ll reach a green broken building and will need to use Gum-Gum Rocket. This cube can be found just after doing so on the main path.