STAR WARS Episode I Racer

MarioToo is correct on this, the only bit of info i would give is, you don't have to do ALL the races, just the Galactic Circuit, you can use cheat mode to skip through all the races, but as Mario said you need to create a new save.

@MarioToo
What "rewind trick"?

When the cheats are active, you can press Y to rewind the race. I only rewinds you, not the other racers, so once you cross the line at the start, hold Y for a couple seconds to get behind the line again and you'll be in first in front of everyone. Cross the line again to have it register as lap 2, repeat until you have won the race without having to race the track,

+1 for MarioToo's comment.

So basically use cheat,create new save file and rewind glitch for every race.
Is that correct to say?

Great solution ✔️

Didn't unlock on first Save File. No cheats used either time and 1st place every time.
Unlocked on second Save File under identical circumstances.

From Oovo to Tatooine also did not unlock

If you use the cheat while having an existing save file, it unlocks the characters on any save file you already have, therefore the achievements for unlocking characters will not pop because you didn’t technically unlock them. You have to input the cheat, then create a fresh file and go through each of the races again to unlock each character. The cheat doesn’t disable any achievements. But it does unlock all the characters on every save you had before using the cheat. You can still use the rewind trick to finish the races quickly, but it has to be a save you created after the cheat save file. I hope that makes sense.

I was having trouble unlocking every character's cheevo after using the cheat code, and what i did was create a new profile beside the one that i used the cheat code. if you do it in the same session without restarting the game you still have the cheat code menu and can unlock the characters cheevo easily. i hope it helps