Cutest thing, unfair. difficult & unbalanced.

I am a huge sailor moon fan. this is the cutest game. however, like many people said... some of the levels are ridiculously difficult where you feel like its mandatory to spend cash. I saw that some of the events lets you collect gems. but only if you clear all the levels with three stars. you mean to tell me, I have to clear the mission, make sure I collect the key AND get three stars? theres no other way you can earn gems other than do buy them or beat some unrealistic courses AND meet the criteria?

Its already hard enough to clear some of the stages, so its even harder to get more than just one star. for some of the stages its helpful to get at least two stars (for keys, level ups etc) to make some real progress. if you wont change any of these things, can you at least make it so you dont lose a heart when you replay a stage thats already been cleared? this game just needs more balance. I really like this game, its the cutest thing especially since Im a huge sailor moo fan. I want to support it but it needs to be fair otherwise it wont grow...

lennbunny about Sailor Moon Drops, v1.7.2