Paint-Brush Hal is Hal when he was teleported to the world of colors with Terence and Crystal (Ice Bird) in Angry Birds Color Adventure
The Power of Paint-Brush Hal
Paint-brush Hal has an acid in its beak, hair and tail leaking melt some structures, in addition to its original power to fly like a boomerang.
Paint-brush Hal in the gamePaint-brush Hal has an acid in its beak, like paint on a brush (so it has that name, its original name was Acid Hal).
His hair and tail are also made of green acid, which help 5% in melt structures.