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