You will find that many geometry questions are the same.So write it down when you finish a question(or use cheat sheet?) Next time if you meet the same question,you can look through your notes and answer it quickly!Also,don't forget to buy Ernesh,scissors,a candy,many blowers and cheat sheet.You can buy Maneki-Neko in the last round.I finish the 0-irritation ending by this way:)