Hydro Thunder Codes -

Medium difficulty tracks and boats:
Successfully complete all three easy difficulty tracks in first, second, or third place.

Hard difficulty tracks and boats:
Successfully complete all medium difficulty tracks in first or second place.

Catacombs track:
Successfully complete the hard difficulty level tracks in first place.

Hydro Speedway track and Tiny Titanic boat:
Finish the Catacombs track in first place.

Castle Von Dandy track and Armed Response boat:
Finish the Hydro Speedway track in first place.

Nile Adventure track and Blowfish boat:
Finish the Castle Von Dandy track in first place.

Chumdinger boat:
Finish the Nile Adventure track in first place.

Hint: Jump the boat:
Make sure you have plenty of turbo power. Hold Throttle, press B, then press Turbo. This should make the boat get some necessary air off ramps.

Hint: Quick start:
Press A when the announcer at the start of the race is says "3...2...1... Go Go Go". This will result in a quick start, and sometimes a 4 second booster.

Use the following sequence in order to receive the four second boost at the beginning of the race. As the announcer says "3", take the accelerator needle up to half the gauge. As the announcer says "2", allow it to drop. When it goes all the way down hit the accelerator on "1" and hold to get the 4 second boost.

Hold B at the start of the race. Wait as the announcer says "3...2...". Release B and press Throttle as the announcer says "1". If done correctly, your boat will bunny hop in the air and get a very fast start.

Hint: 9 second booster in Lost Island:
Enter the first waterfall that appears in the Lost Island track. Jump over the lava spout to get a 9 second booster. The waterfalls are the best place to find shortcuts and secrets. The best boat to use, once unlocked, is the Tidal Blade. It has great maneuverability.

Hint: The only way to complete Venice Canals:
The following steps will help you complete Venice Canals, the hardest level (next to Nile Adventure) in the game in the only way possible. First, you must get a large amount of boost. A fast boat like the RaD HaZarD is recommended, if your good at turning. You must use your hydro jump to jump onto and over grass. This will get you ahead of a few racers. Then, you will reach a room with swinging chandeliers You have to hydro jump at just the right moment on the second chandeliers (there are a total of three). You will get a 9 second boost. Use it wisely to win and complete the level.

Hint: Lake Powell ramp:
There is concrete divider in the middle ramp.

Hint: Recommended boats:
The following is a list of the best boats to use on the easy and medium tracks.

Thunder Park track: Damn the Torpedoes
Lost Island track: Midway
Arctic Circle track: Damn the Torpedoes
Greek Isles track: Midway
Lake Powell track: Thresher
The Far East track: Thresher or Midway