Nah...I was disappointed in the overall mechanics of the game..It was fun for a lil bit though...Sorry Latios!! The original 64 version is and will always be the best.
You got the number of stars for the skill level, regardless of how long you take. So, you can take six hours to cross the bridge and as long as you don't die you get three stars.
Except for the snowmobile one with the checkpoints.