User blog comment:Pokedudes111/wof solo/@comment-3157150-20120509115212/@comment-85.151.227.108-20120509174717

The Wall of Flesh is a boss designed not to be a new challenge for those that have unlocked all the normal content (including molten armour), but to allow people to skip this and go to the hardmode content immediately. Molten armour is in no way required for beating the boss. I recommend necro armour, as it increases ranged damage. As ranged weapon one could use:

-Star Cannon

-Sandgun

-Chakram (care! low range)

-Molten Fury

-Minishark (rather weak though)

Required accessories:

-Obsidian Shield

-Spectre Boots

I myself beat the Wall of Flesh with a sandgun and necro armour without having to retry. Simply keep moving left and shooting, and use your gravitation potion to fly over structures. Potions allow you to walk over lava.