Warp Zoned writes:
"Earth Defense Force 2017 Portable is a Vita port of Earth Defense Force 2017, an Xbox 360 game of almost the same name which came out on the Xbox 360 back in 2007. As a member of the elite Earth Defense Force, developed to protect the planet against hostile aliens, you are the first to fight against the crazy insectoid aliens that invade Earth. With overpowered guns, destructible environments, and hilariously terrible voice acting, the game ends up being just about perfect for the portable environment. But if you’re looking for anything groundbreaking, you’re sure to be disappointed."
Because blowing up UFO's never gets old.
Satisfying visual feedback, so many games have lost this principle and it's sad. Almost everything you do has an interesting and Satisfying reaction, making everything physics based is the key to that, watching everything fly, crumble, and react to your weapons, and slowly increasing you weapons capabilities to do so to an absurd degree, just keeps ramping up the satisfaction of how good it feels to play this game.
VGChartz's Adam Cartwright: "Thanks to the timing of the Vita’s release and its relative power compared to the home consoles at the time (PS3 & Xbox 360), it saw the benefit of a number of these late ports which have remained the ‘definitive’ versions to this day. It’s these games that I’m aiming to look at in this article – titles that are best on Vita by virtue of extra bells and whistles, tweaked controls, and content, or in some cases just a general feeling that Sony’s portable hardware is the most enjoyable way to play."
VGChartz's Adam Cartwright: "Thanks to some solid late-in-life Japanese support, and a sea of backwards-compatible games, the Vita’s library of third-person shooters is a lot better than it first appears, covering a variety of sub-genres from horror to stealth to tactical, all the while providing games that are a tonne of fun to play."
Missed so many games.
Also backwards compatibility differs from region to region.
Literally some stores like the NZ/Aus store will allow syphon Filter 1 and 3 but not 2 and the USA store is different again