Sidescroller shooting and Melee

My last question was deleted, not to sure what I did wrong, but I will try to make it shorter, I am looking for a tutorial on making a script that will allow me to shoot straight on ahead, like in Megaman, i am not worried about charging my attacks, but that is how i want the shooting to work, i have tried many tutorials like Jiddabug or whatever, and they would not work for me, and my comments are left unanswered. so i am looking for pretty much anything that would help.

Have you checked out the Unity 2D project?

Check it out here: Unity Asset Store - The Best Assets for Game Making

You can also check out a bit on how they did it here Unity 4.3 - 2D Game Development Walkthrough - YouTube

They are instantiating a shot and moving it outward from the gun. Hope this is what you are looking for!