Well, the campaign time trials, speed trials and zone trials are pretty easy.
The hardest part of the game is beating the Elite AI on phantom for both campaign races and reverse racebox.
Other than that the most difficult trophies (by far) are the golds with beating Zico as the easiest.
I just hope they don't make the AI less challenging as that would degrade my (and any other players) platinum trophy, when it was insanely difficult.








