100 GS achievement for killing the second boss
~Kill the Leviathan Boss~
Pretty easy to kill with the mage. He has two stages. Deal with the other enemies asap, they will stay dead even if you die. You can see me fight him in my video @12:10
I go over how to kill the dark knights @ 9:10
This is my achievement walkthrough which is a run through of the game and achievements.
I show and tell you how to do everything needed for the full 1000 completion. You can get the full completion in the prologue which is free. More achievements will be added in the future via paid DLC.