Is the Coin-Counter-Sprite located on a separate layer with 0 parallax?
You will need to move the coin to that layer (using "Move to layer" action), adjust its position and then enable Bullet.
Converting coordinates between layers with different parallax is a bit complicated.
Say, if you need to move the coin from layer "Main" to layer "HUD":
Set newX=CanvasToLayerX("HUD", LayerToCanvasX("Main", Coin.X, Coin.Y), LayerToCanvasY("Main", Coin.X, Coin.Y))
Set newY=CanvasToLayerY("HUD", LayerToCanvasX("Main", Coin.X, Coin.Y), LayerToCanvasY("Main", Coin.X, Coin.Y))
Coin move to layer "HUD"
Coin set position to (newX, newY)