 | | X Button | | Jump. Confirm Selections. |
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|  | | Square Button | | Shoot. Attack. |
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|  | | Circle Button | | Throw Grenades. Cancel Selections. |
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|  | | Triangle Button | | Metal Slug Attack (Metal Slug 4,5,6 Only) |
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|  | | R Button | | Weapon Switch (Metal Slug 6 Only) |
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| | |
| | Metal Slug Attack | | Metal Slug 1, 2, X, 3 only | | | Throw Currently Equipped Weapon | | Metal Slug 6 Only | | | Alternate Melee Attack | | Metal Slug 6 Only | | | Alternate Melee Attack for Clark and Ralf | | Metal Slug 6 Only | |
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