The Best ONCE Get Paid. Score Correct Answers And Earn Money! Without doubt, we love TWICE and so do you! Support TWICE, play the game, have fun and complete the levels to receive GEMS. OH did we mention that GEMS can be exchanged for REAL MONEY? YES. We mean it. EARN REAL MONEY! Test yourself and time yourself. Challenge your friends and fellow ONCE and be at the top. Now go grab those GEMS and exchange them for money! TWICE Fighting! Nayeon, Jeongyeon, Momo, Sana, Jihyo, Mina, Dahyun, Chaeyoung, Tzuyu Forever Love