Boss

A  is a powerful, normally unique enemy which doesn't respawn once killed. Bosses are distinguishable from normal monsters as their name and HP are displayed at the bottom of the screen.

While players will generally end up fighting most of the bosses, not all of them need to be killed in order to beat the game.

Although killing most of the bosses is required in order to beat the game, there are a few which you can skip.

As well as bosses there are a number of other monsters which don't respawn upon death (sometimes referred to as mini bosses).

Bosses

 * Asylum Demon
 * Stray Demon
 * Taurus Demon
 * Capra Demon
 * Belfry Gargoyles
 * Gaping Dragon
 * Chaos Witch Quelaag
 * Moonlight Butterfly
 * Great Gray Wolf Sif
 * Iron Golem
 * Dark Sun Gwyndolin
 * Dragon Slayer Ornstein and Executioner Smough
 * Crossbreed Priscilla
 * Seath the Scaleless
 * Pinwheel
 * Gravelord Nito
 * Four Kings
 * Ceaseless Discharge
 * Demon Firesage
 * Centipede Demon
 * The Bed of Chaos
 * Gwyn, Lord of Cinder