There are many special achievements in "Little Bones: Hero Killer". The Cursed One achievement is one of them. To do this achievement, you only need to have 4 cursed dark skills at the same time. Purchase it at Dark Skills There are two red skills in the middle of the interface.
How to obtain the achievement of "Small Bone Hero Killer Cursed One"
The Cursed
Possess 4 cursed dark skills at the same time
There are two red skills in the middle of the dark skill purchase interface (as shown below
In the middle of the dark skill purchase interface, there are two red skills (pictured below
Each round you meet the old man, two will be refreshed. Equip all four skill grids with this red cursed skill to unlock the achievement
Refresh two of the four skill grids that meet the old man each round and equip this red cursed skill to unlock achievements