How do I make and enemy that can shoot projectiles?

I wanna make an enemy that shoots at the player. No specific projectiles, It can be any projectile, arch proj. Or straight proj., it doesn't matter, towards the player specifically.

That is in the FIRST tutorial explained. The most basic of basic tutorials.

https://www.scirra.com/tutorials/top

Here you go run it and if you got questions ask

http://www13.zippyshare.com/v/R4DgCAKm/file.html