These mini bosses roam randomly throughout the world of Rohan - unless otherwise specified. They do not attack unless they have been attacked. They are obvious by a goldish or greenish glow that is easily recognizable.
Quest Bosses - These can be recognized by a "seal" underneath them (a enchanted circle with a key mark in it). Although they are treated as mini-bosses those don't drop any special rewards.
Pixie Queen
Basic Information:
Attack Type: Templar
AOE Attack Type: supil
Level: 1
Monster Guards: None
Item Drops
Corpse of the Pixy Queen
NOTES
Quest Boss
Varg Patriarch
Basic Information:
Attack Type: Physical
AOE Attack Type: None
Level: 8-9
Monster Guards: None
Item Drops
Benezar armor pieces
Worn Forging Option Items
Merchant Soul(beginner) (occasional)
Berg
Basic Information:
Attack Type: Physical
AOE Attack Type: None
Level: 24
Monster Guards: None
Item Drops
Rare Items
Forging Option Items
30 Slot Bags (Rare)
Vairokan
Basic Information:
Attack Type: Physical
AOE Attack Type: None
Level: 26
Monster Guards: None
Item Drops
Noyde armor pieces
Worn Forging Option Items
Salient Knight
Basic Information:
Attack Type: Physical
AOE Attack Type: None
Level: 27
Monster Guards: None
Item Drops
Noyde armor pieces
Forging Option Items
Merchant's Soul Lucky
Enchanted Tonken
Basic Information:
Attack Type: Physical
AOE Attack Type: None
Level: 1
Monster Guards: None
Item Drops
Graham armor pieces
Forging Option Items
Merchant's Soul Medium (occasionally)
Orc King
Basic Information:
Attack Type: Physical
AOE Attack Type: None
Level: 100
Monster Guards: None
Item Drops
Unique Armor (Natu) & Shields
Forging Option Items
Merchant's Soul Medium (occasionally)
Notes
The Orc King in Dharvegawan map is Level 49.
There is a "Giant Mutation" located at Kowarre map, D5 (Crater) that is identical to the Orc King in appearance. It is Level 1 but has the unique quest glow underneath it (looks like a key in a dark gold circle).