Grandpa Sensei from Neo Sushi will eventually ask you to collect 6 Dragon Orbs that are scattered troughout Neo Sushi Island.
You can find them by:
- Defeating Grandpa Sensei in Neo Sushi City.
- Defeating the Tentacles in the school in Neo Sushi City.
- Going in the well north of the park, after battling the Amazing Bullman in Old Neo Sushi City.
- Defeating the Desert Arena champion to the east.
- Defeating the boss in the Hangar, in the waterfall north of Desert Arena.
- Returning to the R&D Facility after talking to Master before getting into the air ship. The orb is in the chest.
Once you've found all of the orbs, speak to Grandpa Sensei in Neo-Sushi City.