The Halloween 3 Add-on for Pixel Puzzles Ultimate Jigsaw has 16 achievements.
Complete Pack: Halloween 3
Complete Puzzle: Candle
Complete Puzzle: Candy
Complete Puzzle: Eyes
Complete Puzzle: Fingers
Complete Puzzle: Hag
Complete Puzzle: Jack
Complete Puzzle: Magic
Complete Puzzle: Pup
Complete Puzzle: Rat
Complete Puzzle: Sketch
Complete Puzzle: Skull
Complete Puzzle: Trick Or Treat
Complete Puzzle: Trippy
Complete Puzzle: Wicca
Complete Puzzle: Witch