Medium difficulty tracks and boats
Finish every easy difficulty track in first, second, or third place.

Hard difficulty tracks and boats
Finish every medium difficulty track in first or second place.

Bonus tracks and boats
Finish all medium difficulty tracks in first place to access the Nile Adventure bonus track. Finish this track in first place to access the next bonus track. A total of four bonus tracks can be made available by coming in first place. All of the four bonus boats: Fishing Boat, Armed Response, Blowfish, and Tinytanic will be available after all four bonus tracks are available.

Simply select two player mode and on the first three tracks medium boats and tracks will emerge. Now race on the three tracks and hard boats and tracks will emerge. Now race on all three tracks and the Nile track will emerge. Then race on the Nile and three other bonus tracks and every boat, including the fishing and tour boats will be available. Keep on playing in two player mode to finish in first place.

Hints & Tips

Catacomb: 9 second boost
When your at the beginning of the race there are two columns. Now go between them and you can get a 9 second boost.

Far East: Shortcut
When you are roughly half way through the level you will come to a place where the water will drop three times. Just when your on the third one, execute your booster jump when you get on the edge. When your boat jumps into the air, hold [Boost]. If done right, you should land on top of a place above the tunnel ahead of you. This will make it a lot faster than having to go in a big "L". Note: This will take practice.

Arctic Circle: Shortcut
Close to the beginning of the level are a few houses. There is a house where you can only see the roof. Now jump off the roof and you should jump ahead three or four places.

Arctic Circle: Secret area
When you come to the area with the big oil tanker and penguins, jump over into a secret area that has a red boost.

New York Disaster: Shortcut
Close to the beginning is a silver revolving door that seems to be solid. Pass through it and you will find a blue boost and a red boost. To grab the red boost you have to use a Hydro Jump so hold [Brake] and use [Boost].

New York Disaster: Boost
In the NY Disaster, when you are racing through the left side of the subway tunnel with the Rescue boat cutting you off and bumping into you, instead of jumping for the nine second red boost in the middle to the right, ram the Rescue boat. Your boost level will stay where it was for the rest of the race.

Lake Powell: Shortcut
Close to the end of the level there are two gaps and a cement ramp-like wall between them. Simply use your booster and go up the ramp. You should land on the train tracks and obtain a 9 second boost.

Lost Island: Shortcut
Go through the waterfall at the start of this level. You will receive a red and blue boost, fall out a small fall, and find a village. At the end of the village, before a slight turn, go towards the left side. You will see a cave. Go through it and grab the red boost, then a blue. You will leave the cave and be above the track. You will get another blue boost and a red boost.

Suggested boats
Below 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