Does anyone know if you need to get those apples to unlock more people? And if so, has anyone figured out how exactly to get them?
At the beginning of each stage you will be given the specific requirements to obtain the secret apple. When you begin, the top screen shows you this information under the apple. For example, on the first stage you must win within 3 turns. For stage 2 you must finish the stage with 0 suspicion on Matsuda.