Eric Golem Jr.
Collect 50 Gold Coins to unlock Eric Golem Jr.

Pi
Collect 20 Gold Coins to unlock Pi.

Spurtz
Collect 30 Gold Coins to unlock Spurtz, Pi's friend.

Lars
Collect 40 Gold Coins to unlock Lars.

Eddie
Collect 60 Gold Coins to unlock Eddie.

Cheat mode
Go to the options menu and choose "Cheats". Answer the series of seven questions with the following to unlock the entire game:
1. Squid
2. Conroy
3. Tito Makani
4. Maurice
5. Ocean Shores
6. Otto
7. Eddie:Prince of the Netherworld

Bonuses
Get 750 on the Shooting Gallery and The Brains That Ate California for two Gold Coins and two episodes of Rocket Power.

PS2 Cheats for Rocket Power: Beach Bandits

Rocket Power: Beach Bandits cheat codes

Rocket Power: Beach Bandits cheats