When you see a Boss amongst the other guards it has,
kill the guards then aim your attacks on the Boss. Almost kill
the Boss, leaving a small amount of life. Save the game, then
kill him. If he does not drop a unique (blue colored) item, press
[Shift] + 5 to reload your saved game, then kill
him again. Each Boss does carry a unique item, but only has a
1% or 2% chance to drop it. Keep repeating this process until
it happens. It may be irritating, but most of the time the outcome
is worth it. This trick is especially useful when in the DarkWarlord's
Property (blue line on the map). Once such item that can be obtained
this way is an Imperial Harpoon with the following statistics:
Confusion Imperial Harpoon Of The Kumo
Dmg: 55-83
Dur: 85/85
Min Str: 165
Min Dex: 120
Min Lvl: 25
3 Magic Slots Left
Increased Durability
+40 To Strength
+40 To Charisma
35% Health Leech
75% To Knockback
Earth Elemental Damage 28-84
Lightning Elemental Damage 4-10
Poison Elemental Damage 8-27