Pause the game, then hold L + Down + Circle. You can now toggle screen sizes by pressing Square.
Note: This only works in Single Player mode, and has no effect in the Mortal Kombat games or Cyberball 2072.
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Enter the options screen and select the “Cheats” option. Enter “fullyloaded” as a code at the cheat menu to unlock all bonuses.
Enter the options screen and select the “Cheats” option. Enter “roadtrip” or “crosscountry” as a code at the cheat menu to unlock all cities in arcade mode.
Enter the options screen and select the “Cheats” option. Enter “ontheroad” as a code at the cheat menu.
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Successfully complete all seven Metal Slug games on the Normal difficulty setting with limited continues to unlock the Desktops 1.
Successfully complete all seven Metal Slug games on the Hard difficulty setting with limited continues to unlock the Desktops 2 and Special Music.
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Successfully complete Infinity Mission on the Easy difficulty setting to unlock Naked Snake.
Successfully complete Infinity Mission on the Medium difficulty setting to unlock Old Snake.
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Unlockable: Stealth Camouflage
You must defeat the game with Technician status level at 99.
Unlockable Characters:
Metal Gear Solid: Portable Ops unlockable Characters.
Unlockable: How to Unlock:
Cunningham - Beat Cunningham on ANY difficulty by stamina kill and beat the game before January 1st 1971 in game. You get him after you make a new game.
Elisa - Get a Medic level of 80.
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