It's a water sort puzzle

I just downloaded a water sort game the other day, but since it looked fun, I downloaded another new water sort app😂 I downloaded it from a different points site, so I don't know if there are any hidden quests or time quests 🙇♀ There are three difficulty levels: Normal, Hard, and Super Hard. I feel like there are many gimmicks with masks where you can't see the color until the colored water above is removed. It's a strange system where the completed bottles don't disappear, but the colors that fit into the frame at the top of the screen disappear first (4th image). I don't think there's any point in increasing this frame. Even if you get stuck, you can increase the number of bottles by watching ads up to about 2, so you can proceed without using items so far👍 From where I downloaded it, the reward was about 300 yen for reaching level 130 within 15 days. Just for your reference 💪🔥🔥