Slightly easier stars
Here's a general hint, whenever you are in a course with a condor and are going for a star that you can get in most missions, pick a star that involves taking a star from the condor, It won't attack you and take your cap.
And here is a specific hint. On the course Tall Tall Mountain, if you are going after the Mysterious Mountainside star, there is an alternative way to trying to go on the slide.
You must be Luigi or have Luigi's cap. Go to the top of the mountain and hit the ? Box. When you get the flower, do a backwards somersault-helicopter towards the piece of land where the wind-up enemy is.
Helicopter past the edge of the cliff, then back towards the cliff, because the star behind the cage is there. If you did it right, then you should helicopter through the cage and get the star.
If you need more time, hit the box and then somerlsalt into the flower as it comes down. Also, you can control the speed of your decent by holding L and B after you jump, this will make you decend slower.
Release them to descend faster.
We have more cheats and tips for this game here, Super Mario 64 DS cheats
Comments for this hint