First of all, I must begin with explaining when that achievement can be unlocked. It unlocks when you get the fire sword - powerful weapon which is really pratcical and useful against monsters you have to slain. To obtain it, you need to collect all elements of Volgarr's equipment.

The items are:
1. Shield
2. Helmet
3. Fire sword!
In the next sections the way to get them is going to be described in that order.

In the end of this section I must emphase that to succeed in getting the achievement from this guide you mustn't loose any of the items I mentioned before! You loose it when you get hurt.

So, when everything has been explained... let's go!

After you enter the the game, you get that awesome looking shield. But when you fail, you go back to this point, having the opportunity to get spawn with the shield next to you. Just grab it, see the power of your spear and proceed onward to the right.
I'm not going to add here the full size of the screen, as for many of You had already reached that place. ;)

After you slay some lizardmen, you will see a kind of damaged stone. Jump and attack it by falling on it with your sword like a sting. By that you can break the stone and fall into a cave with a chest and two bees flying above you. Slash the chest, then grab the item.
It's a helmet you are looking for! As a bonus of collecting second item without being hurt, you will release a beam of energy that kills the bees.

Go out by climbing up the vine. Notice that you might use an alternative way to get into the cave without crushing the stone - you can just go a bit further to the right and (with or without a vine) get into the cave.

As you are near the spot with water, use your spear - you will have to eliminate lizardmen that will jump towards you. You can also try to fight melee, but trust me, if you don't want to get annoyed then use your spears. After you defeat them and jump without falling, kill a snake.

There will be another vine. Climb up and... well, I guess it's enough for this section. Time for the last one in which you're going to get fire sword!

In climbing up, throw your spear to make a kind of platform for Volgarr. The best place in my oppinion is the one I marked inside a red circle. After doing that, move your character towards the vine once again (good position is also marked, but by a red rectangleand) perform a double jump towards the spear.

Now you need to go to the left. You are going to meet 2 bees - slay them; after the bees there are two spiders on rocks that might annoy you, because the moment of getting the fire sword is close. Try, again, to use your spair to kill spiders from distance (or at least one of them) and don't let them hurt you, because they are the last opponents. Of course you might try melee, but I think it's not as much efficient as using all current abilities of Volgarr here.

After the battle and few jumps, your eyes will see a chest. Classic move - go near it and damage till it opens. The fire sword is yours, as well as unlocked achievement!

I'd like to write few words in the end. If you won't succeed, but you truly want to get that sword, then don't worry! This game is oldschool, as well as it's gameplay, so even if you see a certain part as impossible to be passed, you're wrong. Everything can be passed here, you must only get better in this game, find some better, alternative paths (like those two I showed before getting the helmet) and have will to finish it. By that it might become slightly easier.

This was my first guide on Steam; I hope you liked and I hope you succeeded in getting the achievement. :-)