You're a customer service worker in a shop. Answer the questions of your customers within two minutes, 5 seconds of their arrival. Correct answers gain 1 point, and incorrect answers or late answers lose you 1 point. If your points fall low enough, you'll be fired. Can you beat the high score? You can buy two different types of upgrades with your points: the Points Per Question upgrade (PPQ), and the Time Upgrade Level. Each costs 2 points per level. PPQ maxes out at level 4, and the Time Upgrade Level maxes out at level 3. A level costs 2 points, so choose wisely!
Do NOT include units. You need to answer the question to get it to go away, even if the time has already run out. You will not get points, but it will clear the screen. You may get the same question twice because they are chosen randomly out of 6.