Wings Of Bluestar achievements

Finish the 6th stage without using a credit, on very hard

Finish the 8th stage without using a credit, on very hard

Finish the 3rd stage without using a credit, on very hard

Kill the 8th boss at hard difficulty

Kill the 1st boss at normal difficulty

Finish the 4th stage without using a credit, on hard

Kill the 2nd boss at very hard difficulty

Kill the 7th boss at very hard difficulty

Kill the first boss at very hard difficulty

Kill the first boss at hard difficulty

Kill the 2nd boss at normal difficulty

Kill the 3rd boss at very hard difficulty