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Achievements

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Medium Smarts Unlock medium difficulty in Cowboy Zombie
+5xp
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100 Math Questions Answer 100 questions correctly in Cowboy Zombie
+10xp
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250 Correct Answers Answer 250 questions correctly in Cowboy Zombie
+15xp
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Math Cowboy Unlock hard difficulty in Cowboy Zombie
+15xp
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Math Whizz Unlock hardest difficulty in Cowboy Zombie
+25xp