Unlocking Crank
In the 3rd season, finish first in all races. You'll have unlocked a new bonus level called Orbital Junction II. Get first place in this level to unlock Crank.
Unlocking Greck
In the 2nd season, finish first in all races. Then go to Single race and you will have a new bonus level called Lost City II. Get first place in this level to unlock Greck.
Unlocking Kinetica history movie
In all the seasons, finish first in all races.. You'll have unlocked a more secret tracks including Orbital Junction II. Get first place in this level to unlock a video and CRANK secret character.
Unlocking Siba
In the 1st season, finish first in all races. You'll have unlocked a new bonus level called Suicide Slide. Get first place in this level to unlock Siba.