Here is the full list of all 24 Riptide GP: Renegade achievements.
Jump through all the radar dishes in Unicorn Base.
Perform the Logroll stunt off a log jump in Firewater.
Break all the fountains in Fountain Park.
Earn 1st place in all Career events.
Earn 2nd place or better in all Career events.
Beat Lt. Pane in the second Vyper sidequest.
Own 9 hydrojets in Career.
Beat Weaver in the second 0xDEADBEEF sidequest.
Reach level 20 in Career.
Beat Krex in the final showdown in Career.
Upgrade any hydrojet to its max.
Find nine Easter Eggs.
Reach level 15 in Career.
Perform a level 10 stunt off a wave in The Ruins.
Continuously boost for 30 seconds on any level.
Own 4 hydrojets in Career.
Reach level 10 in Career.
Earn 1st place in any Career Championship event.
Earn 1st place in any Freestyle event.
Reach level 5 in Career.
Earn 1st place in any Elimination event.
Earn 1st place in any Slalom event.
Find one Easter Egg.
Earn 1st place in any Race event.