
Less of a sequel and more of a stand-alone expansion pack to the previous excellent PSP offering Portable Ops, Plus delivers another compelling dose of Metal Gear Solid stealth-action gameplay in an easily digestible, bite-sized form. The $20 price tag should clue you in that it's not the meatiest of offerings, but Portable Ops vets won't be disappointed (in fact, importing your characters from that game gives you a keen advantage here), and newbies may even find this psuedosequel to be an even more accessible entry point into the fun, addictive world of multiplayer online MGS.
Score: 7.5/10

Two of Kojima Productions’ Metal Gear Solid titles for PlayStation Portable — Metal Gear Solid: Portable Ops and Metal Gear Solid: Portable Ops Plus — are now available in North America for PlayStation Vita and PlayStation TV, publisher Konami has announced today.
Cool. Other than the old-school controls, in most ways Portable Ops was much better than Peace Walker
In NA with latest firmware on the PlayStation TV. The game won't start, saying it isn't supported. Lame.
I need MG Acid and Acid 2 for the vita like asap! Those games were soooo good and sooo underrated.

Twinfinite writes:
The story of the Metal Gear Solid is really complicated. Here are all the plot points from Portable Ops you need to know before playing Metal Gear Solid V: The Phantom Pain.

Kojima Productions has announced that today, on March 30, 2012, 18:00:00 (JST), the servers for Metal Gear Solid: Portable Ops and Portable Ops Plus will be closed, making it no longer possible to play the PSP titles online.