An up-and-down 3rd person shooter that uses it's license as a crutch, but it does so effectively.
The story for the game borrows a lot of plot points and subject matter from the movies. As a result, it doesn't feel very fresh, but the recycling does allow you to replay some of the classic scenes with a mildly different twist.
You'll have the chance to catch Slimer in the Sedgewick Hotel, take down Stay Puft before he can climb up the side of a building, and even visit the sewers for a walk through some rivers of slime.
The script was equipped with some funny moments, and the original cast is back to supply high quality voice acting. The music and sound effects are also top notch, although it's hard to give points for this, as they only needed to rip them from the original movie.
Unfortunately not everything had heaps of attention devoted to it; a number of technical glitches did make appearances. The mouths on all the characters didn't always move during the cut scenes, there was the occasional loss of sound during the cut scenes and even once for an entire level, some of the visuals for a room didn't load until after I walked into the room (so when I looked through the door, I just saw blackness and a few miscellaneous objects) and in the nearly 7.5 hours it took for me to play, the game froze about half a dozen times.
When the little things weren't getting in my way, the game was enjoyable. Not groundbreaking non-stop awesomeness, but fun enough to see the adventure through to the end. It was a pendulum effect where there were times you felt like things were getting boring and repetitive, and times where you felt like a real Ghostbuster in the middle of an intense swarm of ghosts.
When you are having fun, you'll enjoy the array of equipment your constantly getting equipped with. By the end of the game, you'll have your PKE Meter with goggles, and 3 guns each with 2 firing modes. These include a slime gun with slime grenade, a shot gun style weapon with freeze ray, and of course the well known proton gun powered by an unlicensed nuclear accelerator, complete with an alternate powered-up shot. The weapons have unlimited ammo, but will either quickly heat up or need time to recharge as you use them.
With these weapons you'll find, eliminate and catch ghosts. To capture a ghost you will first have to wear down their primary power meter, then catch them in your proton stream and throw them around the room to wear down their 2nd power meter. Then you'll do this again, and again, level after level.
There are a decent variety of ghosts and ghouls that come after you, and certain weapons do work better on some then others. The boss battles are also generally a good time, and help mix things up a little bit.
Aside from the ghost catching, there are some switch puzzles thrown about, but these shouldn't provide too much of a challenge. Most of them usually consist of 'slime object A so you can pick it up with your proton pack, then place in slot B'.
As you progress you will have the opportunity to go back and replay any level you'd like and try to finish gathering all the collectibles. The first type of collectible consists of pages from Tobin's Spirit guide, often hidden inside objects like boxes and desks, sending you on the time consuming and tedious task of trying to break everything you see just in case there's a page inside. The other thing to collect are scans of various objects, ghosts, and entities. These are less of a pain to search for, but in the heat of battle you may forget to do the actual scan. Find enough pages and complete enough scans, and you will not only gain a wealth of knowledge about your foes, but you will also unlock bonus features to help you out during game-play like doubling the speed of your health regeneration.
For a fan of the movies, the game was entertaining, but the desire to go back and get 100% completion just wasn't there. For most players, a weekend rental would probably be enough. You may find it creates the paranormal effect of being more fun to play it, then to look back on it.