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