Already played before, and now there are hidden quests

I've played this game before, and back then, the hidden quests only went up to stage 5. Yesterday, I saw there were time-limited quests and items, so I downloaded it again. Turns out there are a bunch of new hidden quests, and even some I had already completed. But I didn't save any records and deleted it right away back then, so now I have to replay it...