In Hello Kitty Island Adventure, you can find Rubber all around the Seaside Resort area, at the foot of palm trees. Location #1 You can find a single unit of Rubber in the western part of Seaside ...

Rubber is one of the first materials you'll need to collect in Hello Kitty Island Adventure, since you'll be asked to gather some for Chococat to open the gate leading to the spooky swamp.