farewell and jumps down the hole to the next level.

Start by sliding down a slope. After sliding off, lean forward and grab the edge of the opening to collect Shotgun Shells (or the Shotgun if you don't have it). Drop down to the water and climb up near the stairs.

Follow the stairs up to a grating on the right. Blow it out and take the Save Crystal inside.

Climb the ladders to a room with metal girders. To the right, find Flares, Shotgun Shells (or the Shotgun), and Uzi Clips. Watch out for a Gangster.

Head around to the left of the hole and pull out a block.

Safety drop down the hole to the top of a ticket booth. Kill the Gangster and jump to the other ticket booth beneath a hole. The Gangster drops a Small Medi-pack.

Using the side of the block you pulled out, climb a ladder to the top. Safety drop down the next pit, follow the corridor, and climb down on the right.

In the ticket office, pick up the Maintenance Key and the Large Medi-pack. Press the button to exit.

Leaving the office, head left and go down the escalators to the right. At the bottom, jump over the pit and go beyond to the train platform. Be wary of a Gangster and a Doberman.

Head right and use the Maintenance Key to open the door. Pick up Uzi Clips and a Small Medi-pack, then press the button to turn on the lights.

Head to the opposite side of the platform and pick up the Old Penny. Safety drop down into the pit.

Facing the escalators above, go left and sprint down the tunnel. Quickly dart into the room on the right before being run over by the train.

In this room, shoot the two Gangsters and take the Small Medi-pack from the corner.

Climb up the boxes and then over the boxes in the corner for a Save Crystal.

Climb back over and shoot the Doberman below. Climb the box in the opposite corner and turn left. Run, jump, and grab to reach the box in the opposite corner.

Use a running jump to reach the boxes near the ramp. Side jump onto the ramp and then jump forward and grab to reach the grating.

Climb up and backflip to the ledge behind you, killing the Gangster quickly.

Turn around and jump to the single square ledge. From here, use a running jump with a grab to the ledge behind the grating you climbed. Here, you will find Uzi Clips (or the Uzis if you don't have them).

Safety drop to the floor and climb back up.

Back at the top, climb the box where the Gangster came from and use a standing jump with a grab to reach the ceiling. The nearby button only turns the alarms on.

Swing along to the right and drop on the ledge. Climb up into the doorway and turn around.

Use a standing jump with a grab to reach the ledge with a Rocket. Safety drop back down and climb into the doorway again. Save your game.

SECRET #1: Slide down the slope backwards to get the drill going. Grab the edge as you go over and drop down on the collapsing tile. Jump left to the slope and slide down to the end. Jump off and grab the crack ahead. Shimmy right and drop down on the collapsing tiles. Let them break and drop onto the slope. Slide down, grab the edge as you go over, and pull up. Back flip off and roll in mid air to land on the slope sliding backwards. Slide down and grab the edge. Drop and grab the next three ledges beneath you and pull up to the ledge with the Save Crystal and MP5 Clips (or the MP5 if you don't have it).

Run down the slopes to the bottom and take the Large Medi-pack. Return to the top and climb up on the ledge.

Turn around and use a standing jump with a grab to the next ledge. Climb up through the opening in the ceiling and take the Save Crystal from the ledge behind you.

Climb up the wall and stay to the left to avoid being fried by flames. Wait for the flames to dissipate and then jump to the metal platform to the right to shut off the burners.

Climb up to the Small Medi-pack and then climb up on the sloped ledge. At the other end, use a standing jump with a grab to acquire the wall and then climb up a few steps.

Back flip off the wall to the ledge with the button. Push it and return to the wall. Climb to the top and crouch down to avoid the flames. Take the Uzi Clips and safety drop off the other side of the platform.

Climb the ledges and make your way to the area above the train platform. Before dropping down, head left and kill the Rat for a Large Medi-pack and Shotgun Shells.

Safety drop down the hole in the grating and return to the red room.

Get back to the top of the room and return to where the drill was. Walk atop the drill and climb up into the ceiling opening for a Solomon's Key. Follow the path to the top and safety drop down. Return to the red room again.

Climb back to the top and go through the trap door in the ceiling. Carefully crawl forward to avoid attracting attention from the Gangster and his Doberman. Get a safe distance away and open fire on them.

Return to where you climbed up and back flip to the ledge behind for some Shotgun Shells.

Go into the room between the two flights of stairs and pick up the MP5 Clips. Stand on the collapsing tile and let it break. Pull out the block and then climb back over and go down the other pit. Follow it to the end and climb out, going left. A door will let you back into the previous area.

Head the other way and you will eventually come to two buttons. Press the right button first, then roll. Run up the hallway to the right and follow it to the pool room. Take a left and head for the left door. Hang a right and sprint down to the far door on the very right and get in before it closes. Press the button and slide down the slopes. At the bottom, make the final jump down the hole to the next level.