This property specifies the type of blood (by its name, rather than by number) a creature/object sheds when injured by Act/React Stimuli with BloodCause set to True. If you give a creature/object a BloodType that is not affected by gravity/has no physics properties, the 'blood' will just float at the point upon which it was inflicted. A particle effect could be used as blood to good effect, but any name in the object heirarchy can be used. "NoBlood" is used for creatures that do not bleed.
Property Name: BloodType