11 cheat codes for Metal Gear Solid 2: Sons of Liberty on PS2.
90% of the Plant's tags - blue wig: the O2 gauge never drains underwater.
Collect 218 dog tags in the Plant chapterComplete the listed condition (collect dog tags by holding up enemies and threatening them) - counts are CUMULATIVE across playthroughs on any difficulty. Unlocks are then selectable from the main menu.
Fight every boss back-to-back with their loadouts.
Beat Sons of Liberty once (any difficulty)Complete the listed condition (collect dog tags by holding up enemies and threatening them) - counts are CUMULATIVE across playthroughs on any difficulty. Unlocks are then selectable from the main menu.
Replay cutscenes with any characters cast in any roles.
Beat Sons of Liberty once (any difficulty)Complete the listed condition (collect dog tags by holding up enemies and threatening them) - counts are CUMULATIVE across playthroughs on any difficulty. Unlocks are then selectable from the main menu.
Extreme difficulty - getting spotted is instant game over.
Beat Sons of Liberty once (any difficulty)Complete the listed condition (collect dog tags by holding up enemies and threatening them) - counts are CUMULATIVE across playthroughs on any difficulty. Unlocks are then selectable from the main menu.
30% of the Tanker's dog tags (92 total). Counts CUMULATE across every playthrough on any difficulty. Clear the game to use it.
Collect 46 dog tags in the Tanker chapterComplete the listed condition (collect dog tags by holding up enemies and threatening them) - counts are CUMULATIVE across playthroughs on any difficulty. Unlocks are then selectable from the main menu.
50% of the Tanker's dog tags. Hold up soldiers and threaten them for tags; totals carry across runs on any difficulty.
Collect 76 dog tags in the Tanker chapterComplete the listed condition (collect dog tags by holding up enemies and threatening them) - counts are CUMULATIVE across playthroughs on any difficulty. Unlocks are then selectable from the main menu.
30% of the Plant's dog tags (245 total) - the brown wig gives infinite ammo after clearing the game.
Collect 73 dog tags in the Plant chapterComplete the listed condition (collect dog tags by holding up enemies and threatening them) - counts are CUMULATIVE across playthroughs on any difficulty. Unlocks are then selectable from the main menu.
50% of the Plant's tags. Raiden's stealth for the Big Shell chapter.
Collect 121 dog tags in the Plant chapterComplete the listed condition (collect dog tags by holding up enemies and threatening them) - counts are CUMULATIVE across playthroughs on any difficulty. Unlocks are then selectable from the main menu.
70% of the Plant's tags - orange wig: hang/grip meter never drains.
Collect 170 dog tags in the Plant chapterComplete the listed condition (collect dog tags by holding up enemies and threatening them) - counts are CUMULATIVE across playthroughs on any difficulty. Unlocks are then selectable from the main menu.
MGS2: Substance only - enter the Konami Code (Up Up Down Down Left Right Left Right B A) as the save-name in Missions mode to unlock every mission and character.
Save a file named UUDDLRLRBA in Missions modeComplete the listed condition (collect dog tags by holding up enemies and threatening them) - counts are CUMULATIVE across playthroughs on any difficulty. Unlocks are then selectable from the main menu.
Sneak behind an enemy, hold them up, then threaten (aim at the head/crotch or shoot a limb) to make them hand over dog tags. Higher difficulties give rarer tags; totals cumulate across all runs on any difficulty.
Complete the listed condition (collect dog tags by holding up enemies and threatening them) - counts are CUMULATIVE across playthroughs on any difficulty. Unlocks are then selectable from the main menu.