Plenty of variability on how you want to do things in missions, especially weapon-wise.
User Rating: 9 | Metal Gear Solid: Portable Ops PSP
Just like I said in the preview, there is plenty of ways to do things in this game. You could just walk straight out into the open with just Snake, or you could just walk straight out into the open with one of the enemies you knocked out and dragged back to you truck. Or, you could whip out your trusty AK-47 or M16 and cleverly hit the opposing guards in the head, using up only 1 bullet each, instead of the 10-15 it takes to the chest. I usually take the stealth route with Snake and knock guards out until I am satisfied, and what needs to be done.
The graphics are very nice, and run at a decent framerate for the PSP.
The sound is what you would expect from a MGS game.
The multiplayer can be troublesome, but can be quite entertaining.
All-in-all, MGS: Portable Ops is a game that every PSP owner deserves to own. 
