Where are all the stars?? I Cant find one in the yellow area (which area is that?).

First of all, welcome to the boards! This posts was splitted from the FAQs topic because of not really being a frequently asked question.

To help you, could you please specify more exactly which area you're meaning? The starting one, with all the flickers and the connection to the race track, maybe?

I guess, Mr. Foot, that you have reached the End zone and there is still one yellow star missing, the color of which indeed means it is in a certain zone. It's not really hard to figure out which zone is associated with the yellow color: for instance red obviously is Volcano. There are two stars in that "yellow" zone, both are pretty tricky to locate and take, and we don't know which one of the two you're missing. So I'll just give you this hint: try to come into this zone from another, to reach special areas you have not explored yet. The missing star is likely there.

Studying the world map should be helpful here as well.

Oh thanks! I actually completed the game!