You control Ryu in this mission. The level starts in a subway tunnel. A Muramasa Statue will be immediately visible. Use it to upgrade your weapons and stock up on any supplies you might need. You'll be attacked by some bats. Proceed down the tunnel, dealing with any bats you meet on the way. Eventually you'll be attacked by Ninjas. Kill them and head to the hole at the end of the tunnel. You'll reach a station area. Fight off the Van Gelfs that ambush you. Head to the stairs branded by an exit sign. Heading up you'll find a Save Statue. Use it and proceed.