Central Park Cemetery

Proceed dead-ahead (get it?), but stick to the outside wall at first the Whistling Bust of Mausch artifact by a gate before heading deeper into the graveyard. Before long, your path will be obstructed by some gravestones that pop out of the ground--blast 'em. After passing through a gate bordered by two lamps posts leading toward a large building, turn right and go around the fence toward the mausoleum. As you approach, some flying skulls will fly out--ignore them and head on in.

Continue down the stairs to a cracked wall obstructed by tree roots--clear them out of the way with a few blasts, and continue onward to a second set, then up some stairs leading back outside. Approach the "Gate Control" on the right (as marked by the sign) and slam it downward with the capture beam to open the gate for your fellow Ghostbusters. Afterward, Ray will team-up with you--follow him through the door he kicks open.

Follow the path through the graveyard until you come across some black-slime creatures, a couple of ghosts and attacking tombstone enemies. Equip your Shock Blast to tackle them all. For the most part, we suggest ignoring the tombstone enemies unless they're directly in your way, and instead charge right up to the ghosts for a few easy blasts. Once captured, take down any remaining enemies, then escape the area by destroying the tombstones blocking the exit (where you originally came through).

After exiting through the gate, check behind the wall just ahead for a Stone Angel Head artifact, before returning to the path, leading to another battle. Here you'll face three more ghosts and several tombstone enemies. Like before, rush right up to the ghosts with the Shock Black to easily take them down. Afterward, follow Ray through another mausoleum and out the other side, leading into the Crypt Maze.

Once at the Crypt Maze, take the first right, followed by a left, to find the exit…which will become locked. Head back the way you came, with the Shock Blast equipped to kill the enemies along the way, and turn right at the end to locate the key. Use your Grapple Beam to carry it back to the door.

As you attempt to take the key back, a large Golem thing will come to life. Get close, but duck into a nearby alley and use your Shock Blast to quickly take him down at close-range. Once he's defeated, grapple beam the key and position it inside the glowing lock to open the way.