Ninja Outbreak

1. 
   Golden Adventure

   Override Lockdown of the Xenobiology Lab
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2. 
   Scorpion Thunderbolt

   Get the Chain Lightning gun
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3. 
   Full Metal Ninja

   Get the Rocket Launcher
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4. 
   Ninja Terminator

   Beat the Game
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5. 
   Ninja Untouchable

   Find All Four Ninja Hearts
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6. 
   Counter DestroyerSecret

   Steam withholds the description of a secret achievement.
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Names, descriptions and icons are the game’s own, as Steam publishes them.