Pocket Zaurus: Ju Ouken no Nazo/Walkthrough

Stage Composition
While the first stage is predetermined, and will always be Dinosaur Island, the next three stages are chosen at random. Stages 2, 3, and 4 will be the Haunted World, Future City, and Egypt Land in an random order. There is no change in difficulty, regardless of when you encounter each stage. Once you clear the fourth stage, you will always arrive at the Pantheon Era for the fifth stage, where you will fight against the final boss once you complete the stage.

Pop quizzes
When you arrive at specific points in the game, you will trigger a pop quiz. Some pop quiz locations can be avoided while others are mandatory. Before you are shown the question, you will see how many points the successful answer is worth, 1000, 3000, or 8000 points, chosen at random regardless of location or the question that follows. If you answer the question correctly, you are awarded the indicated number of points. If you don't answer the question, you suffer no penalties. Other than boosting your score closer to the next 30,000 point energy recovery, quizzes have no other benefit.

Since the game is in Japanese, translations of the quiz questions and answers have been provided here.