Decadroid was an ancient pirate language in which Captain Angstrom Darkwater was known to write. No one else on Hoolefar Island could read it. Darkwater's treasure map was written in Decadroid. The Smuggler could not read the treasure map but, fortunately knew the location of Darkwater Cove where the map pointed, and promised to take Ratchet and Talwyn there if they would give him a payment of bolts. They were willing to pay the amount of bolts and the Smuggler brought them to Darkwater Cove.
- Ratchet & Clank Future: Quest for Booty (first appearance)