The Spirit Forges
The Spirit Forges let you sacrifice blood for objects.
Yes, there is indeed
one Spirit Forge for each object. The Spirit Forges are often hidden
behind stone doors that only open during full moons. Some of the
Spirit Forges, especially ones that give Kain more powerful objects,
are more concealed, and require a bit of searching to find.
Check out The Plot for descriptions of their
locations. Or look here for graphically
intensive spoilers on their locations.
Each of the Spirit Forges
also has a secret back door which lets Kain gain access to it from a
distant location. This is particularly useful when Kain gains the Mind
Control spell. (Nothings says that is must be Kain's blood that is
The Bat Flight Beacons
The Bat Flight Beacons are points Kain can fly to in Bat Form. Each beacon has
to be triggered before it can be used.
The obvious use for Bat Beacons is to return to that location after
taking a side trip to another part of the world. As it happens, many
of the Bat Beacons are situated near Moon-Key Doors, which is quite
convenient when the full moon rises.
Look here for descriptions of where all of
them are located in the game.