Speedy
Not unlocked yetAnswer a question correctly with only one second remaining on the clock.
Personality Buff
Not unlocked yetWin a game with People as your best subject.
Science Buff
Not unlocked yetWin a game with Science & Nature as your best subject.
Soft Touch
Not unlocked yetStart a game on Easy difficulty.
Sports Buff
Not unlocked yetWin a game with Sports as your best subject.
Trivia Master
Not unlocked yetComplete a whole game without getting a single question wrong.
Lucky Shot
Not unlocked yetMiss 10 zombies, but manage to hit one thanks to Lucky Shot killstreak.
Snail Mail
Not unlocked yetTake 20 seconds to answer a question and get it right!