Start with level 1 and enter the 10 answers without getting 3 strikes (wrong answers). Strikes reset after each level. After either striking out or winning, enter the red code into the Sporcle quiz.
NOTE - Any wrong answers that would need to be typed to get a correct answer are forgiven. However an answer is always accepted if it or the answer required by typing it are BOTH wrong answers, i.e. if Niger and Nigeria are both incorrect, typing Niger will result in a strike (and you know now not to type Nigeria). This applies to "UK" and "Ukraine" as well, and "Dominica"-"Dominican Republic."