Trauma is hidden until the player releases it by solving a puzzle, where the player has to discover a painting's name. The gallery's floor has a picture of a clock with hands pointing to VIII, IV, and VI. The values refer to paintings with those particular letters: VIII for "Vividarium," IV for "Intervigilium," and VI is "Viator." The player must enter the three titles in that order. This is supposed to be Latin for "In the Garden Sleeps a Messenger," but many of the pictures' names are Greek, falsely spelled or made up.
Trauma can create Dromas and damage all characters with its Spirit-ignoring Mega Pulse Cannon, which it will use once two Dromas are killed. It can also cast Drain on the Dromas to heal itself, eventually killing them.
Since Trauma will only use its Mega Pulse Cannon if two Dromas have been killed, it is advisable to leave at least one of them alive and concentrate on attacking Trauma. Meltdown can be used to lower its high Vitality.