Great Title! Spoilt by IAP!!

So, this is a great title - beautifully produced and a really fun game.
Progressing through to level 3 was fun and challenging.

BUT, the target needed to open Level 4 onwards is 120 out of 135 maximum stars out of 45 levels played.
Meaning you need to hit 40 perfect levels (3 stars each) or 30 perfect levels and an additional 15 levels with 2 stars out of 3.

Meaning, progressing is nearly impossible unless you spend tons on money on solutions via IAP!

I would not have minded a "Unlock All Levels" IAP as well.

But THIS is unfair.

Mercury2wo about Feed Me Oil 2