its very hard to get the coins appearing from the left side :s can you help?
actually my coins are created and appear inside the level :s
I would have to see your CAPX to help.
Basically you create a coin at a random position using the X and Y coordinate and it will travel what ever direction you have set in the bullet settings. Then you destroy it using the X setting when it reaches the opposite side and create it again on the start side.
If they are appearing inside the level it sounds like you need to change the X coordinate to be outside the layout when they are created.