So, I want to know how to get boss stars. This topic randomly popped up in my mind when I was wondering about getting boss star I, II, III and IV and V. I don’t know if IV and V actually exist but other than that how do you get boss stars?
You can get boss stars by completing levels. (And boss star V is only usable in Zero Sum right now)
Boss star i - v all exist but boss star 5 is currently not available for players and boss star i - iii can be achieved in mountain and iv can be achieved in glacier .
Hope it helps
Yes, you can get only 4 stars.