Belphegor, the rage king

 os the boss of the 4th floor

Appearance
*Note: What does the Boss look like?

Background
The boss floor

Chronology
''*Note: A history of player's interactions with the Boss. Like in most video games Bosses can be re-fought multiple times, however only the FIRST person who defeats it will get any Rare Drop Items, other players with most likely receive standard Monster Drops. In terms of 'SAO Floor Bosses', only one player need defeat it for the way to be cleared, but that does not mean that those Bosses cannot be fought again. Please keep this in mind.''

Abilities

 * Flight
 * Flaming chains
 * Streaght
 * Firepower

Known Challengers

 * Royal Knights:
 * Galant
 * Guinevere
 * Lance
 * Gawn
 * Dagonet
 * Bors
 * Percival
 * Tristan
 * Galahad
 * The Army
 * Kibaou
 * alt least 30 more members
 * Several other guilds and solo players