Heat is as he appears in Digital Devil Saga 2. Regarding spells and skills, he has all his gun skills, Void spells, and every skill in the game save for those that Instant-kill and those which carry non-poison status effects. He does not suffer from HP-loss due to skill usage. Spell-wise, he has Xanadu, Wicked Curse, non-revival healing, all buffs and debuffs, and every Ice, Fire, and Almighty spell save for Third Eye, Celestial Ray, and Death Flies. The only passive skills he has are Null Ice, Iron Stomach, Devour Mana, elemental boosters, Elec Resist, Phys Resist, Null Death. He may freely turn into any of his forms, boss included. He has eaten Tommy Tawodi from Prey, gaining all his powers and abilities, which he can use as well as the original. His parameters will increase as if he had the power of Heat and Tommy Tawodi combined. If Heat is killed in battle his "soul" will go through a trial and will create a body like his original form. Said body will revive in roughly the last position before his death, unless it'd kill him again (eg, in lava), whereas he'd appear in the closest neutral position. He may do this up to four times. His legs have also been crippled by Marche, though he won't feel any pain because of this, and starts the battle in an electric wheelchair
Selvaria is as seen in Valkyria Chronicles, with access to her Valkyrur lance and shield as well as her Rhum machine gun. She cannot use her Valkyrur Flame self destruct power. Her legs have been crippled by Marche, though she won't feel any pain because of this, and starts the battle in an electric wheelchair
Isa is as seen in Sin and Punishment: Star Successor, in his Stage 7 form. He functions as if Kachi is fused with him, and cannot unfuse with or be separated from her. In addition, he can use both Isa and Kachi shooting modes and charge shots. His legs have been crippled by Marche, though he won't feel any pain because of this, and starts the battle in an electric wheelchair