Blaster Battles are sections with a cover mechanic.
Wait... a cover mechanic? In a Lego game? Cool.
Your first BB will be right after you beat the first AT-ST. Shoot the bad guys without getting shot (cover mechanic FTW), and pop!
According to Wallness Fury, "another good EASY spot is the target practice in the bar in Maz's Castle (Level 5) no enemies, still counts." Thanks!
