All bonuses and 300,000 points:
Create a new game using shaaark as a profile name.
Start a new game using blooood as a profile name.
Create a new game using unstopable as your profile name.
Collect all 50 hidden treasure chests by searching Open Ocean West, Open Ocean South, Open Ocean East, Grand Occasus Canals, Underwater Caves, and Fisherman's Isle. Then, save your game. When you resume that game you will have unlimited health.
Play any level or boss fight:
Collect the 45 license plates that are hidden throughout the story levels.
Thanks to Revolution Readers Lance Kendall and BbyJoe!