Giant's Torso is an enemy in Final Fantasy IV: The After Years exclusive to Final Fantasy IV: The Complete Collection. It is part of the superboss Lost Babil, and is faced in the first part of the battle alongside Giant's Right Arm.
If the Torso is attacked, the Right Arm will move over it to intercept all attacks. While protected the Torso will count down to Laser, a powerful attack that will likely kill whichever party member it hits. When not protected, the Torso will cast Blink on itself, and uses Thermal Rays, Black Hole, or Diamond Dust.
Defeating the Torso causes a chain reaction, destroying the Right Arm also. If the Right Arm is killed first, the Torso may use Self Destruct.