Here is the full list of all 10 Shiny The Firefly achievements.
Earn all time stars in World 3
Earn all stars in Worlds 1, 2 and 3
Earn all coin stars in World 3
Earn all baby stars in World 3
Earn all baby stars in World 2
Earn all coin stars in World 2
Earn all time stars in World 2
Earn all time stars in World 1
Earn all baby stars in World 1
Earn all coin stars in World 1