Shambler is an enemy in BloodRayne: Betrayal.
Shamblers are slow moving purple undead creatures, who are seemingly immune to regular damage. Shamblers can in fact die to regular attacks, they just don't react on being attacked in any way. When blasted with a Sun Gun, the shambler's flesh will burn away and all that is left is a burning skeleton that then runs to the nearest wall and explodes.
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Artwork
Shambler after set on fire
Concept art