You must be level 20 for this:

First, go to pit (click on twilly then click left to him). Fight until you die (have low defence and deal less damage to die faster), the skeletons will talk, and ask you if you want to go back, you can choose: "Yes!" (yes) or "Challenge the Boss" (no, choosing this will make you go to and meet the boos. Choose "Challenge the Boss" then you will meet a half-undead guy called Hacker (lol). He will run, reequip your items and try to survive the wave of enemies, then when you meet Hacker again, you will fight him. When he's defeated, before clicking OK click on his weapon and you will get it (temporary, disappears when you log out). Then click OK. After some talking a shop will come up. Buy the Pit Protector armor (it's here you need to be level 20(non-temporary)). Now you have a cool weapon and a cool armor until you log out (you will just loose your weapon). If you want to, die outside of the pit, click on death's hourglass and do his quest. After finding all hourglasses and killed the boss you will get a skull head XD. I want to show you how i look but i don't know how to add a .PNG image. Plz comment about how to do that.