Ultra Smough

Ultra Smough is an enhanced variant of the Smough component from the Guillotina boss encounter, representing a powered-up version of Guillotina's body in a later or harder iteration of the house boss fight. Following the Dark Souls reference pattern, Ultra Smough likely absorbs power from its fallen counterpart, gaining enhanced stats or additional abilities when the Ornstein (head) component is defeated first.

In the Dark Souls source material, killing Ornstein first causes Smough to absorb his partner's power with devastating hammer attacks. The Mewgenics version likely follows a similar escalation, with the Ultra body gaining enhanced slam attacks, wider AoE coverage, and possibly new knockback or butt-slam variants. This makes the body significantly more dangerous to deal with in isolation.

See the Guillotina entry for the full context of the house boss encounter. If you killed the head first and are now facing Ultra Smough, spread your team widely to minimize the impact of enhanced slam attacks and use ranged pressure to whittle down its health pool safely.