So far definite buys:
Uncharted: Golden Abyss - I've always though the series was good, not great, but this is going to be the true technical marvel to showcase off. That this is a launch game says a million things about Vita, all of them good.
Hot Shots Golf 6 - Still the best arcade golfing game. I wish they added RPG elements like Mario Golf GBA, but sans that it's as pure fun game experience as it comes.
Katamari - Finally a Katamari game on a handheld with two analog sticks. The PSP Katamari game was so painful to play, hand contortionist style, that it essentially ruined the game. This time we're going to get the proper real deal. It's been a while since I played a good Katamari game, so I hope with the new mechanics it'd pass the mediocre Beautiful Katamari and Katamari PSP.
Gravity Daze - Siren dudes with some crazy gravity defying mind fuck game? Hells yeah. Looks original, handheld friendly and it's not just another attempt to ape a PS3 game. This is what I'm talkin' about.
Little Big Planet - I never seem to have the time to dedicate to really getting good at level building. Finally, I can bring it along and really try to get into the level building shit. And since it's Vita, there won't be any gameplay/visual sacrifices. I'm game.
Persona 4: The Golden - Let me preface to say I hate this lazy port shit. But I have a very soft spot for Persona (and Shin Megami Tensei games in general), so hopefully with the new characters and features it'll justify the purchase. And this time it'll be the full deal with better graphics than the original, none of that point-and-click of Per3Por, so this is why I'm likely going to get it. Might replace my original copy.
Ys 4 Celceta, Sea Of Trees - One of my most anticipated Vita titles. Looks like the type of remake that deserves the time and day. Ys 4 is the only Ys game I missed irl, and since it's an obscure game as it is certainly it's not a Zelda situaiton where I've played it 5000000 times.
Sound Shapes - Looks like portable bliss. Original, looks hot and addictive.
Dragon's Crown - ASS CHEEK SWISH SWOOSH SWISH SWOOSH ASS CHEEK. 'Nuff Said.
Lumines: Electronic Symphony - Lumines is one of the all-time greatest puzzle series. Apparently this game will introduce a ton of new features PLUS re-implement an electronica/techno only soundtrack, so there is absolutely no way to go wrong. Probably will spend 600000 hours on this.
Ruin - Because getting it for PS3 means also getting it for Vita at the same time. One needs support such astoundingly smart decisions. Plus seems like a loot whore game, for which I am a sucker.
Super Stardust Delta - A sequel to one of the best PSN games. And it just so happens to be ideal for portable handheld gaming, so I'm in.
Rayman Origins - I think this is the first game I'm ever going to be purchasing multiple versions of on day one. It's too beautiful. Does it have cloud saving?
Resistance: Burning Skies - I like the Resistance series, even the second one, so I have no problem with a brand new portable game.
Little King's Story - One of the best Wii games, this new title will probably be one of the best Vita games. I'm thankful the art style isn't near as big of a departure as I feared. Will be great for handheld play too.
DJ Max Technika - DJ Max series is one of the best rhythm/audio game series. No way I'm missing out on this. I'll import if I have to, and I almost never import.
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EVERYTHING ELSE...
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I'd get Ridge Racer if the being 'early' part is true to the extent that we will eventually get locked 60fps. If not, Scamco won't get to fool me this time. This time this is a launch that actually has some games that aren't shitty, so I won't have my hand forced by the disaster (like, say, with the 3DS launch). I'm sure Ultimate Marvel vs. Capcom 3 will be a good game, but I don't buy handheld titles to just re-buy what I will own on my console. If they included this with the PS3 version, I'd have it. Otherwise, no thanks. Same for Street Fighter X Tekken. I may get Army Corps of Hell if by some miracle it turns out decently, since the concept seems like the type of thing I get into. Wipeout 2048... I am waffling on this at the moment, because it seems to be 30fps. I love Wipeout SO MUCH and it has never been a series that has sinned frequently, so I might still forgive it and purchase it. 999 turned out to be as bad as those who warned me not to get it because it wouldn't be "for me" suggested, so I'm surely skipping Extreme Escape Adventure: Good People Die. I'm waiting to see a little more about Alien Spidy before deciding... nice style though. Was going to get Escape Plan before I heard about the awful touch only controls. No thanks.
Silent Hill: Book of Memories will depend entirely on reviews from people I trust. I love Silent Hill, but this seems totally out of the spirit and just sort of fanwanky. I like WayForward, but they're going to have to prove to me it has a reason to exist. Sumioni looks cool, but I doubt it'll come to the USA. May get Final Fantasy X HD if it is possible to encourage a Final Fantasy XII International HD game for Vita. Also Bioshock, looking forward to whatever Level 5's RPG is, and of course ANYTHING from Cave has my ears perked.
Really, Vita's opening game salvo is quite remarkable from a system stand point. I haven't wanted this many games in a launch window since SNES.