First answer
FIRST_ANSWER82.4%

Achievements and their recorded unlock rates.
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FIRST_ANSWERCORRECT_STREAK_1CORRECT_STREAK_3CORRECT_STREAK_5CORRECT_STREAK_10REACH_SCORE_1200BACKGROUND_MUSIC_ACHCORRECT_STREAK_15REACH_SCORE_1400REACH_SCORE_1600SOLVE_EXTREME_QUESTIONREACH_MASTERREACH_SCORE_2000CORRECT_STREAK_30