| Achievement | How to unlock
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| Alien's Lair Medal | Finish Stage 8 of Arcade Mode without losing a single life.
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| Ammunition Supply | Buy an item for the first time at the shop.
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| Base 1 Medal | Finish Stage 2 of Arcade Mode without losing a single life.
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| Base 2 Medal | Finish Stage 4 of Arcade Mode without losing a single life.
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| Energy Zone Medal | Finish Stage 6 of Arcade Mode without losing a single life.
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| Female Intuition | Play as the female Contra soldier for the first time.
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| First Appearance | Reach Level 2.
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| Freestyle | Play Mission Mode for the first time.
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| Goodbye, Rocks! | Destroy 10 falling rocks in Stage 3 of Arcade Mode.
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| Guardian Angel | Revive for the first time.
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| Hangar Medal | Finish Stage 7 of Arcade Mode without losing a single life.
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| Hero | Destroy 4 alien incubators in Stage 8 of Arcade Mode.
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| High Flyer | Jump 5,000 times.
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| IED Bombs | Destroy all armored cars in Stage 5 of Arcade Mode.
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| Jungle Medal | Finish Stage 1 of Arcade Mode without losing a single life.
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| King of the Jungle | Kill less than 5 enemies in Stage 1 of Arcade Mode.
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| Master of Guns (F) | Kill 2,500 enemies with F bullets.
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| Master of Guns (H) | Kill 2,500 enemies with H bullets.
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| Master of Guns (L) | Kill 2,500 enemies with L bullets.
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| Master of Guns (M) | Kill 2,500 enemies with M bullets.
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| Master of Guns (S) | Kill 2,500 enemies with S bullets.
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| Master of Guns (SF) | Kill 2,500 enemies with SF bullets.
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| Master of Guns (SH) | Kill 2,500 enemies with SH bullets.
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| Master of Guns (SL) | Kill 2,500 enemies with SL bullets.
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| Master of Guns (SM) | Kill 2,500 enemies with SM bullets.
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| Master of Guns (SS) | Kill 2,500 enemies with SS bullets.
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| More Guns! | Use all kinds of bullets.
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| Nuke This | Use the V Bomb for the first time.
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| Red Enemy Gang | Kill all red enemies in Stage 4 of Arcade Mode.
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| Savior | Reach Level 20.
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| Serial Killer | Kill 5,000 enemies.
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| Sharpshooter | Kill all snipers and gunners in Stage 6 of Arcade Mode.
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| Snow Field Medal | Finish Stage 5 of Arcade Mode without losing a single life.
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| The Ghost | Finish Arcade Mode with less than 300 kills.
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| Total Destruction | Destroy all traps in Stage 7 of Arcade Mode.
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| War Hero | Finish Arcade Mode.
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| Waterfall Medal | Finish Stage 3 of Arcade Mode without losing a single life.
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| What Gun Turrets? | Destroy all gun turrets in Stage 2 of Arcade Mode.
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| Zombie | Die 1,000 times.
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