It wasn't really underrated, it was forgotten, those who played it realized the games were fucking brilliant(Lunatea's Veil is easily my favourite game of all time) And most games got good reviews, it's just that no one played them.
That's exactly why I say a game is underrated; nobody plays it =P
That's typically what makes a game underrated though. A game gets good reviews. Nobody plays it, and it doesn't sell well. This is Okami, Star Ocean, and Valkyrie Profile in a nutshell. As well as a good chunk of the games I own.
-Darkwatch, one of the few FPS games I enjoy, the multiplayer is insanely fun, and there is nothing as satisfying as shooting people with a rocket launcher the second they spawned from a teleporter.
Still better than me; I can't enjoy any modern shooters unless it's Quake 3, Unreal Tournament GOTY, Half-Life or older. F.E.A.R is a good exception, and I love Half-Life 2. Although nothing can knock Goldeneye and the original Perfect Dark off the throne of greatest FPS games ever...
there is nothing as satisfying as shooting people with a rocket launcher the second they spawned from a teleporter.
I prefer doing that in Quake 3 =P although that's usually the reverse; you kill someone with a rocket the instant YOU spawn in a teleporter. Because everybody knows that spawn camping is... well, lame.
I could totally say Melty Blood is underrated but... It really isn't. It's not only hugely popular in Japan, it's also created quite a fanbase in America, where all versions of the game are illegal, and it has some of the largest Netplay communities I've ever even seen on the internet (Melty Bread comes to mind...). What just started as a PC doujin fighter became popular enough to gain a series of revisions that are still ongoing, and even got so popular to warrant 2 PS2 ports, the second of which is gonna be released next month. And it's one of the most popular games I've ever seen, not to mention one of the best I've played.
Plus, it does what Street Fighter doesn't, and is scrub free. It's got one of the most newbie friendly communities I've seen in my life, possibly THE most, and some veterans/frequent tourney players (aka, the people who spend every moment of their lives playing with others over Hamachi servers) are even willing to give some of their time to some of the newcomers, and help them learn how to use a specific character, or learn specific mechanics of the game, particularly the relatively difficult things that I'll refrain from naming due to jargon.
It's a shame it's only fanwork, because if not for that, the game might've actually been localized. Can't wait for Actress Again, on that note. Totally can't wait to play as School Uniform Akiha, and Ryogi Shiki (Cause Kara no Kyoukai is <3)