The Perigrum Forma is a small creature that attacks by jumping at the player. Because of this the best way to kill them is to use a sword (charged Damocles recommended) and time the swing so that it kills the monster on its way towards you. Another way is to use a rapid fire gun and just spray bullets everywhere in an attempt to kill it.


The Research project 'Perigrum Forma Corpse' says that the creature has a very tough carapace; "It's whole body is organized like a biological weapon" and "It's brain is saturated with PSI energy".