A flash game created by Chibitami.
All math problems are addition. But this is done in a weird way. All you have to do is avoid clicking the correct answer.
Simply click the wrong answer in time to score. However, if the answer is 9, then you must click the ⑨. The faster you answer, the more points you get, up to 5 points each problem. If you make one mistake or you take too long, the game is over.
The tempo increases when level reaches 21, 41, and 81.
Holding 'e' when clicking the title screen enters "Lunatic mode" which starts the game at max tempo.