Sphinx

The Sphinx is the boss of Impel Down's Level 2, Beast Hell.

Appearance
The Sphinx is a gigantic creature with a dark humanoid face and a winged, leonine body. It also has a scar above its right eye.

Personality
Similar to the Manticores that it leads, the Sphinx mimics words that it hears from the people around it, but does not understand what those words mean. Most of the words it mimics are different types of Japanese noodle dishes. Also, it is not exactly intelligent, as it thought Mr. 3's wax clones were actual people.

Abilities and Powers
The Sphinx is the boss of Beast Hell, and is extremely powerful. It is strong enough to smash through an entire floor with a few strikes, causing the entire floor to collapse to the level below. It can also tear through a Kairoseki-embedded steel cable net with ease.

History
The Sphinx was first seen guarding the stairs to the lower level when Monkey D. Luffy, Buggy, and Mr. 3 left their cells and tried to descend to Level 3. Luffy managed to strike it down, but the Sphinx managed to smash the floor and caused the trio, along with itself, to plummet to Level 3, the Starvation Hell.

After Saldeath managed to catch the four of them in a Kairoseki-net, the Sphinx tore through it in a rage, and continued to pursue the three criminals. After Luffy met up with Mr. 2 Bon Kurei, they managed to defeat the Sphinx.

After Buggy and Mr .3 escape from Level 5, the Freezing Hell, to Level 3, the Sphinx finds them and starts to chase them.