What are the differences between the 2 tribes?
In each tribe, there is one leader and some members. According to your choice (tribe + character), your rider will have different behaviour in the spots and jets he chooses. Try all of them on each track, to see what works best!
What is the difference between the jet skis?
Jet skis have different caracteristics (speed and acceleration) and also, according to your character, it will react differently.
Can I play on any track?
Sure! At first, only the Malibu and Hawaii tracks are unlocked. To play on other tracks, you need to unlock them.