Curving arrow mechanism
So to start off with insert two sprites by right clicking and getting the drop down menu and clicking "insert an object"
1 object will act as the player and the second will be the arrow. For the arrow add the bullet behaviour and destroy outside of layout.
Now add place you objects like this bare in mind my player object is red and my arrow/bullet is green.
Now add these events
There you have it a curving arrow mechanism you can change the speed the arrow curves by changing how much you add to the variable.
Heres the capx if it doesent work for you but dont just download this capx read through the tutorial again please.