Tag feature aside, Capcom Vs. SNK Pro is a lot like the arcade game(s).  Not since Tekken 3 was released have I seen such a diverse lineup of fighters.  Returning favorites from the Street Fighter series include Ken, Ryu, Guile, Chun-Li, Dhalsim, E. Honda, M. Bison and many, many more.  Even the lovely Morrigan (from Dark Stalkers) is playable!  Additionally, there are a plethora of characters from the King of Fighters series that gamers may not be familiar with.  Kyo and Ryo are KoF's answer to Ken and Ryu.  Vice is an unfeminine female fighter, while Sakura is your typical Japanese school girl.  Those are only four of the 10+ fighters that SNK contributed to this game.  All of the fighters have very similar rolling motion-style moves, so even if you've never played a KoF game before, you'll have no trouble getting into Capcom Vs. SNK Pro.  The default difficulty setting is very easy, which is great for younger gamers who are new to the genre.  Older gamers may appreciate the weaker challenge, too, especially if they got their butt kicked by the local arcade junkies.

Unlike its predecessor, Capcom Vs. SNK Pro is not very big on game modes.  Instead, it concentrates on the most important aspect: arcade fighting action.  There are a few choices outside of the standard Arcade and Versus modes, including a helpful training mode.  Price Mode is the most unique of the bunch.  After earning a significant amount of VP (versus points) from playing through the Arcade mode, you can buy new characters and EX versions of characters that you already own.  This is pretty interesting, since most games require you to enter a code or beat the game a certain number of times to unlock all of the fighters.

There is also a color edit mode (which allows you to edit the colors of your fighter), but that's it.  This extra stuff is cool and all, but other than the training mode, most of it will probably be ignored since you'll be too busy playing the Arcade/Versus modes.  Seriously, if you invite a friend over to play this game in the afternoon, the sun will fall before he/she leaves.  And if you have multiple friends over, the number of hours you spend playing the game will likely multiple.

Before the character selection screen appears, the game asks you to select a Groove: Capcom or SNK.  Capcom's Groove is familiar to us all.  As you attack, the bar at the bottom of the screen will begin to fill up.  There are three levels, and once one of them is full, you can unleash a devastating Super Combo.  If the bar is completely full, you can choose to perform the weakest Super Combo three times, or perform the most powerful Super Combo once.

SNK's Groove is a little different.  There are no levels here: just one big bar.  This Groove won't be charged by attacking -- you must hold down HP and HK to fill it up.  When the bar is full, your character's attacking power will be increased for a bit.  You'll also be able to perform Super Special Attacks.

The only thing that holds this game back is the PSone itself.  Like I said, it's seven years old.  In 1995, RAM was not a major game development concern.  Sony didn't know how important it would be for next-gen fighting games.  Because of this, only two characters can appear on the screen at once.  New ones can't be tagged in or out since the console would have to pause and load the tagged character, interrupting the gameplay.  If you remember, Mortal Kombat 3, as great as it was, had tremendous loading problems with Shang Tsung, who could transform into every character in the game.  Capcom wanted to avoid that.  So they worked around it by having each character battle one at a time.  When one dies, the game loads (for about five seconds) and then the next round begins.  It still "feels" like a Vs. game -- the only thing missing is the tag.  If you can't live without that feature, then I urge you to buy a PlayStation 2 or a GameCube.  Capcom Vs. SNK 2 is an excellent, arcade-perfect fighting game.

Every time I turn around, I find myself saying, "This could be the last great PSone game released!"  And then another great game is released for Sony's seven-year-old console.  Among Capcom fighting games on the PSone, this is probably the last one you'll ever see, so don't miss it.  At the very least, rent it.  If you already have Capcom Vs. SNK 2, this version isn't a necessity, but it is a blast, and the gameplay variations are fun to mess around with.

Gameplay: 8
After more than a decade, Capcom's classic characters are still going strong.  They may not be starring in their own game anymore (though I'm sure they will at some point in the near future), but Capcom Vs. SNK Pro was developed by the same people who made the other games.  All of the great qualities of Street Fighter are here.

Graphics: 7 
For a PSone game, the graphics are good.  However, when compared with the PS2 version of Capcom Vs. SNK 2, they're not as impressive.  The characters look exactly the same...but the animation isn't as fluid, and the backgrounds aren't as detailed.

Sound: 6

Difficulty: Easy
This game isn't entirely "easy," but it isn't at all difficult.  You could easily beat the game just by punching and kicking -- no special moves, combos, etc., necessary.  The level difficulty can be increased though, giving the player a greater challenge.

Concept: 5.5 
Capcom Vs. SNK Pro is a good concept, but it's not exactly a new one.  Every year, an upgrade of some kind is released.  Sometimes it comes in the form of a full-fledged sequel, other times it comes out like this: a fun, entertaining compilation of characters and play mechanics that have existed for years.

Multiplayer: 8.3
As with any fighting game, Capcom Vs. SNK Pro's long-term fun lies within its two-player Versus modes.

Overall: 8
Capcom Vs. SNK Pro is a must-have fighting game for every mobile screen owner.  If you have the new PlayStation model (referred to as PSone), then chances are you have Sony's 5-inch LCD screen.  If so, buy a battery pack and get this game ASAP.  It is a great car trip game.  I'd much rather spend several hours on the road trying to master this game's enormous lineup of special moves, than sit bored wondering when I was going to arrive at my destination.  Wouldn't you?

This game is also for those few unfortunate gamers out there who have yet to get a PS2 or a GameCube.  Capcom Vs. SNK 2 is already out on PS2, and a new variation of it is coming to GameCube.  Without a doubt, that is the Vs. game you'll want to play at home.  But like I said, if you don't have either of those consoles, Capcom Vs. SNK Pro is a great buy.