bitten off

Vermin, cannibalistic humanoid rat, attacks Daredevil.

Vermin bares his fangs when his power slowly overcomes the Man Without Fear, his fellow rats huddle together to the hapless hero.
The human rat bites Daredevil's powerful shoulder again and again to satisfy his relish for blood, our hero only screams in pains.

:: Spoiler warning ::

This Daredevil is actually Peter Parker, Spider-man. He wears the famous dark red costume borrowed from Matt Murdock to find his roommate in Spider-man costume.

beaten violently

The Man of Steel is blasted by supersonic attack, his face is stuck to the wall by the monster's thrust.

The superpowered alien, Subjekt-17, bops Superman with his brutal fists, and stomps hero again and again.

completely unmasked

Spider-man managed to break chains. However Kraven the huntress bears him down on the face.

She pulls his mask to expose the secret identity of Spider-man.

shark attack

Surrounded by many sharks, Green Lantern is attacked by the Shark mutated tiger shark with intelligence and humanoid looks.

The Shark bites Green Lantern on the arm with his fierce teeth, mighty green hero screams in pain.
Green Lantern escapes from the ocean successfully although he is seriouly injured. However the Shark attacks him on shore, Shark's big jaw seizes his prey.
Brought back under water, Green Lantern is at the mercy of the Shark.

Watching injured superheroes, I feel a sense of complex emotion, a combination of excitement and a little guilt attributed to the unusual scene. Superheroes must be decent and strong, but are in weakened states now. I can't look away from the scene of superheroes in peril.

in the nightmare

Superman slowly comes to himself...

The Man of Steel finds that his powerful body is trapped in spread-eagled position in front of a villainess, the Raven.
In the nightmare dominated by Raven, all he can do is to expose his helpless body to his enemy.

electric chair

Managed to dodge the thrust by a villain, Batman finds himself trapped in the chair, his arms and legs are restrained in the metallic shackles.

The bounds are so tight that the Dark Knight can't break free.

When his foe clicks a button on the remote control, intensive electric current strikes whole body of the Caped Crusader. Every muscles of the hero are convulsed with exquisite pain caused by the electric shock.

The villain is a Joker in disguise. In front of the archnemesis with a proud grin, Batman can't do anything but endure massive pain with quivering well-built extremities.

nearly unmasked

Jackpot takes Spider-man from behind tightly, Blue Shield approaches to unmask him.

Confronting two opponent heroes, Spidey is being unmasked helplessly.

Unmasking is also my favorite. The mask does not just hide true identity of masked superhero, the mask itself is the identity of him. Masked superhero must feel humiliation unmasked in public.