Firehouse
Alright rookie, it's time to get moving. Follow your fellow Ghostbusters down the fire pole ahead and then down the stairs to the right, leading to the basement. There you'll find Slimer--fire a blast from your Proton Pack at him, causing him and another ghost to hightail it into the next room.


Head after Slimer by following Ray through the door. He'll give you a quick crash-course on the basics of your Proton Pack, such as where your health and temperature gauges are displayed. The health gauge is pretty self-explanatory, but there are some subtleties to the temperature gauge. In short, the longer you fire your Proton Pack, the hotter it's gonna get. If it overheats, you'll be a sitting duck while it automatically cools down. However, you can also dissipate the heat at any time by tapping the Right-Bumper (360) or R1 (PS3)--we suggest doing so whenever there's a lull in the action.


Alright, so Slimer's still running amok. Target him and open fire. As you do, you'll notice a meter will appear around your targeting reticule; this displays how much energy the ghost has remaining. You're going to have to wear him down before you can capture him. Unfortunately, Slimer will soon take off, and the Sloth Ghost will appear. Wear him down like you did with Slimer and strafe around the room to avoid the goop he sends your way.


Once you've reduced his health, Ray will tell you more about the "cap 'em" stage. Basically, your Proton Pack will automatically switch to "Capture Stream" mode once you've damaged the ghost enough. When this happens, your goal is to wrangle or slam the ghost to wear it down even more, to the point that you can easily capture it. You may have noticed a "slam" meter in the bottom-right corner; this automatically refills whenever you've got a ghost in your capture stream. However, you can also fill the meter even faster by wrangling with the ghost--that is, tilting the right-control stick in the opposite direction the ghost is heading (it's just like Luigi's Mansion). Once you've built up some "Slam," tap the left-trigger while tilting the control stick toward the ground or a wall to slam the ghost into it. After a few hits, the ghost will become weak, giving you a chance to capture him. Deploy the Ghost Trap and position the ghost just above it to begin the capturing process. Now, the ghost won't take this lying down, so continue to wrangle the ghost into the trap by tilting the control-stick away from the direction the ghost is trying to escape to in order to force him into the trap.


With the ghost captured, collect the trap and hop into the Ecto-1 to head toward your next mission.


