Jump from the ledge over to the ladder and press the
button in the hall to stop the deadly fan. Now you can
safely dive in and get the grenades beneath the fan.
Now go flip the switch near the walkway to open the
sealed door and continue down the hall. A Doberman
and two guards attack from the left so finish them off
before continuing. Get the shells and Uzi's if needed
then use the pillars to get across the vat. Make sure to
avoid the swinging hooks, but if you "go for a swim"
you can use the tunnel under the water to make your
way back and try again.

Kill two more guards and take their flares and the medkit.
Now you should be at the top of a long slide which
dumps you right into a vat of toxic waste. About
halfway down the slope is a hole which contains Secret
#1; the Stone Dragon. You can slide forward and into
the hole where you can claim your statue before
climbing out and continuing your slide towards the toxic
waste. When you reach the bottom you can jump across
the waste to the other side.

Climb up the ladder and grab some ammo then check out
the slope beneath the hole. Jump in the hole and grab
the ledge as you slide off backwards. There is a guard
on duty below so get ready. Drop down and grab and
pull up while drawing your guns to kill the guard. Take
all that ammo he leaves behind. The door with the Blue
Key Lock is near your present location and the Blue Key
Card is in a hole on the other side of the room. Jump into
the small opening from the catwalk. You will slide down
the slope and into the hole where you can take the card
then follow the tunnel back around and up the ladder
and to the door with the Blue Key Lock.

Get ready for action as you enter this next room. Four
Dobermans and a guy with a flamethrower are just
waiting to take you on. Dispose of the dogs while
keeping a safe distance from the guy with the fire. Take
him out QUICK with the biggest gun you have. It's best
to kill these guys before they ever get off a shot. If they
do manage to "flame-on" then just backup and wait until
it is safe to move in and finish them off.

There should be four doors; two of which have wheels
you can spin to open them with. One door leads to stairs
going up and the other has stairs going down. Go down
these stairs and eliminate the workman then push the
box out of the way to reveal a control panel with a
missing Chip. Make a note of the circular saw as you will
be coming back shortly.

Before you jump into the water make sure you have
found the only place that you can get back out. Now
dive in and tease the frogman so he follows you to the
surface. Climb out and fill him with lead then dive back in
and explore the tunnel he was guarding. You should find
two switches inside the tunnel - flip them both and
continue along this passage making a series of right
turns. A door should open as your get near, so go
through and turn left to arrive back at the large pool. Go
up the stairs and take care of the two guards and the
workman who are guarding a helicopter. Grab the medkit,
ammo and shells when the shootout is over.

Cross the large room and enter the smaller room with
some burners in the floor, a trapdoor, a switch and a
button. Flip the switch on the right and head forward
and drop through the trapdoor to collect the M-16 and
some clips. Quickly climb out and return to the button
before the burner turns back on. Flip the switch again
then jump to the left and push the button then make a
dash across the room, jumping OVER the trap door and
grab the Chip. Quickly do a reverse roll and head back
out of this room and to the control panel where you can
use the Chip.

After you insert the Chip, the door open. Run down the
ramp and shoot the workman across the pool from the
safety of the hallway, then run across to the medkit he
dropped. A flamethrower is to your left and he opens fire
as you run past. Take care of him from the opposite side
of the pool then go to the right of the orange tank to
open a secret panel. Go inside and press the button,
then return and dive into the pool to obtain Secret #2;
the Jade Dragon from the now-opened grate at the
bottom.

Exit the pool and grab the Harpoon Gun which is next to
the scuba gear then dive back in and head down the
underwater tunnel. When you hear the breathing of
approaching frogmen, retreat back to dry land and kill
both of them from the safety of the shore. Now jump
back in and swim through the passage to emerge in
another room. Exit on the low ledge on the right and take
care of those two workmen. Now you can jump up to the
top of the wall and flip the switch to open a door back in
the previous room.

Return to the previous room where a frogman and two
workers are waiting for you. Kill them all and take the
medkit and Uzi clips as your reward. Go through the
door you just opened and use the switch the crane will
move allowing you to climb up and over to the other
side of the pool.

Head for the corner and jump over the boxes and press
the button to get a view of the room with the door you
"unsealed" earlier. Head for that room now killing the
two guards and their dogs. When you arrive, drop down
and enter the tunnel and arrive at the central chamber. A
guard tries to distract you from his friend with the
Flamethrower who is sneaking around the corner so take
out the flamethrower guy first then finish off his friend.
Grab the second Chip which we need for that circular
saw we passed by earlier. Return there now.

Insert the Chip and the blade disengages and you can
now take the Red Key Card before returning to the
central chamber. Use your new key card and drop down
to take care of the Rig Boss. Continue into the room with
the water and take care of the remaining Rig Workers.
Take the medkit and also the harpoons which are over
by the scuba tanks. Continue through the door until you
enter a large room.

Kill the Rig Boss and the guard from above then enter
the open door to the small room to obtain Secret #3; the
Gold Dragon. If for some reason this door is shut, you
will need to return to the room where you used the Red
Key Card and flip the switch. The switch toggles this
door open and closed, but the door should be already
open assuming you didn't go flipping switches earlier
without me telling you to. Once you have the statue you
can approach the body in the middle of the room to take
a submarine ride and exit this level.