Board Thread:New on Terraria Wiki/@comment-25427864-20140916155424/@comment-24197468-20140922195941

Skeletron prime might seem hard, but if you get to know his maneuvres he's more about dodging wich isnt very hard. Also building a platform above the ground of .. well.. platforms (xP) helps a great deal. The bombs he shoot out of his cannon won't explode when it hist a platform, but falls trough like our own bombs and bullets does, making them harmless to you. Adding a few layers, 2 or 3 is enough, is pretty handy as well as this will improve your ability to kite him. Don't put them to close togetherso they won't slow you down when you want to fall down for a dodge. Flying in circles works pretty good, trough i prefer making a U-shape around it as it will ofter try to fly above your head and can hit you when you try to fly over it. If you have a mega shark and a few stacks of crystal bullets you'll be fine :) If you have trouble with his swinging arms you can kill those first, but like mentiones above the cannon arm wont do much harm other then blocking your bullets from hitting his face.

Good luck and have fun!