The release causes the body to take over the appearance, abilities and powers of a demonic being. When activated it releases a large blast which destroyed the surrounding area. Satan Soul is initiated by seemingly covering user's body in flat, square-shaped scales-like parts, which subsequently disappear, revealing their new appearance. In such state, the eyes become darker and the eyelashes grow larger, with a dark, thin marking in a light zigzag-style crossing the right eye vertically; similar markings are present above the right breast and on both bare thighs. The hair becomes wilder, jutting upwards and getting curlier, with the front ponytail growing longer, and the ears enlarge, extending backwards, and gain pointed edges, bearing resemblance to those of fictional elfs.
User also gains sharp canine teeth, and the lips become covered in dark lipstick. The forearms and hands receive noticeable changes, becoming covered in scales and each sprouting a fin-like protrusion on its outer side. They also grow a large, stocky tail seemingly made of metal plates or scales, getting smaller and smaller near its end. the clothes also changes, with any attire they might be donning being replaced by a dark, suit revealing arms and legs, which is open on the back, exposing most of the upper back too. Such cloth has lighter-coloured edges taking on spiky shapes, and the similarly spiky collar is tied around the neck by a cravat tie. The shoulders are tied in some thin belts protruding from the suit, and the feet are covered by matching, boots, which are decorated by lighter motifs on their upper parts, taking on the shapes of jagged blades pointing downwards on the front of the legs, and on the lower parts, in correspondence to the ankles and feet. User also dons a pair of gauntlets covering the back parts of their transformed arms.
Flight: In this form, User is capable of sprouting a pair of wings from their back at whim, which allow them to fly. Such wings are reminiscent of a bat's, and come with small spike-like protrusions on their upper edges.
Enhanced Durability: This form increases user's natural durability, allowing them to take multiple powerful explosions in consecutive reprises, emerging almost unscathed and remaining active to continue the battle.