Here is the full list of all 18 Death Coming achievements.
Kill 50 Thieves in Bonus 2.
Achieve the highest rating in all Acts
Successfully launch the missile in Act 2
Spotted all Death Traps in every Stage
Accumulated 5 vases missed
Kill the 8 starred characters in Act 7 and trigger the curtain call.
Trigger the Incident of Alien Robot during the Massacre.
Kill all the marked characters
Clear all Acts
Trigger the gorilla plot at the Pier
Discovered by Angels for 10 times
Kill all passengers on the train in Snow Mountain Stage.
Waken Werewolf, Dinosaur, Vampire and Pharaoh in the Museum Stage.
Complete a 10-combo kill
Complete a 5-combo kill
Kill the Matron of the Villa area
Kill the FIRST person during Reaper work.