in Sniper Mode to score a one-shot kill.

If you don't want to use up your Cloak (you can use it later in
the Boss Fight),
strafe back and forth, firing on each Bif as you dodge his curving
energy blasts.
The second Bif will often get trapped behind the far pillar, his
energy blasts
simply pumping into the stone. If he doesn't get caught up, move
forward and
strafe back and forth until he drops. In the corner near the ramp,
grab a Super
Chaingun (handy against the Boss).

Mount the ramp and follow the path around. There is a +50 Health
here. On your
way back, locate the blue lock ball buried deep in the rounded
rock. Snipe it to
open the door at the bottom of the ramp. Head through and drop
down, eliminating
the Death Sphere that greets you in the ensuing corridor. Avoid
the laser at the
other end of the hall and enter a large, spherical chamber. Take
down the Spheres
here, then focus on the lock balls scattered around the room.

There are three to the left, easily sniped from your position on
the platform and
another to the right. As you move down the stone path to the
right, be wary of
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