Pig bang 1-19 is the 19th level of Pig Bang.
It's based on luck for kill all pigs especially the pigs in the bubble.
A good trick for Pig Bang level 1-19 is to send the Black Bird into the third vertical stone block (the one next to the small pig. Detonate immediately upon impact to send debris toward the astronaut pigs. Break both of their space suits, and trigger the TNT with either debris or another bird, to earn your stars.