The Halloween 3 Pack Add-on for Coloring Pixels has 21 achievements.
Complete image 1 on the Halloween 3 book.
Complete image 2 on the Halloween 3 book.
Complete image 3 on the Halloween 3 book.
Complete image 4 on the Halloween 3 book.
Complete image 5 on the Halloween 3 book.
Complete image 6 on the Halloween 3 book.
Complete image 7 on the Halloween 3 book.
Complete image 8 on the Halloween 3 book.
Complete image 9 on the Halloween 3 book.
Complete image 10 on the Halloween 3 book.
Complete image 11 on the Halloween 3 book.
Complete image 12 on the Halloween 3 book.
Complete image 13 on the Halloween 3 book.
Complete image 14 on the Halloween 3 book.
Complete image 15 on the Halloween 3 book.
Complete image 16 on the Halloween 3 book.
Complete image 17 on the Halloween 3 book.
Complete image 18 on the Halloween 3 book.
Complete image 19 on the Halloween 3 book.
Complete image 20 on the Halloween 3 book.
Complete all images in the Halloween 3 book.