Nope. Well, not that i know of.
A shine sprite
Lots of places, like... Level paintings Secret courses Boss areas Star coin prize rooms
One of them is in the consecutive rooms where the star coin doors are and the level editor paintings. There is a secret opening in the room with the level editor paintings. Go through it, and there should be a star coin.
in the small castle theres one part where there is a star coin and those blocks are falling ignore the star coin and go straight forward before you touch the wall jump and theres a secret exit
After you hits the ? Switch in the room that slides opens the ceiling leading to the 3rd Star Coin, you must wall jump up to the star coin, but instead of heading back down, keep wall jumping for about 3 screens and you will come to a door leading to the secret exit. The Secret Exit unlocks World 6-A.
The third star coin on level 5-c is located near the checkpoint flag. Before you reach the red switch, there will be a wall of bricks. By hitting the one on the bottom section, you will cause a vine to grow. Climb the vine and head right until you see the star coin.
a star or a secret helper
Not sure, could be Saudi Arabia. Try a good coin book and you can find it.
Le Secret du Lone Star was created in 1920.
How much is the coin worth
Simple. If you unlocked the wing cap, you can do this. Go to the island in the sky. Get the wing cap and go into the cannon. Notice the rings of coins. Each one has a coin in the center of them. These coins are the five secret spots to get the star. Get them and the star will appear.
To get the leads of star coin on MSP, get into your account and then spin your coin wheel at least once a day.