Soul Hackers 2
47 Achievements
60-80h
PS4
A Profane Performance
Performed a Normal Fusion.
69.0%
How to unlock the A Profane Performance achievement in Soul Hackers 2 - Definitive Guide
Demons are fused at Cirque de Goumaden, which is basically the only thing in Roppo Realm bar some side quests (and after a point, a shop). You don't get access until you clear Arrow's Soul Matrix 1F, which you need to do as part of the main story. Once you have access, select Fusion -> Normal Fusion, then any 2 demons in your posession and to get a stronger demon and this achievement.