Because the original DLC achievements got lumped together, in case of confusion, these stat awards only count inside the Nightmare in North Point mode. Conversely, getting gold medals here will not count for the Strike Gold or Gold Rush achievements.
VAMPIRE HUNTER - Defeat 200 Jiang Shi.
Jiang Shi are the floating hopping enemies. Car kills do not counter, you must defeat them in melee. After completing the main story and secondary missions, drive around and stop whenever you see a red marker near the road. It'll either be Jiang Shi or a Peachwood Sword, which will help with a different award.
DEMON HUNTER - Defeat 20 Yaoguai.
There are two options for defeating Yaoguai - at full Face/Magic Tea, you can defeat them in melee, or you can stab them with a Peachwood Sword. Always choose the Peachwood Sword.
DEMONIC EXORCISM - Defeat 15 Yaoguai with a Peachwood Sword.
There are two ways to get a sword. The first is to do a blue Jiang Shi side mission, which spawns a sword after the fact. Alternatively, when driving around, a red marker can mean either Jiang Shi or a Peachwood Sword. If it's the latter, a Yaoguai will immediately spawn. If you have a purple portal side missions that involve defeating Yaoguai, take the sword with you; otherwise, the only way to spawn Yaoguai is to grab the sword in the first place. Limit your kills to only Yaoguai; if you face a group of Jiang Shi, drop the sword by holding
, then pick it back up when you're done.
HARD TO GET - Avoid 100 Jiang Shi bites.
Find a group of Jiang Shi and defeat all but one. Grapple with
and do nothing else. When it breaks free, it'll immediately go for the bite; counter with
to avoid the bite. You can continue this indefinitely until you end up countering with a maxed out Face counter, which will instantly defeat it. I found I could get 12-15 counters out of a single Jiang Shi.
UNDERWORLD OFFERINGS - Find 10 Hell Money Shrines.
This is its own achievement, and there is a map available.