Get your crayons ready for some monstrously fun fun with this free printable Keroppi Halloween coloring page, featuring Sanrio's famous little frog. For the monster party, Keroppi takes on the look of the legendary Frankenstein, sporting a zigzag hairstyle and two large bolts attached to the sides. His huge eyes and mischievous grin are still instantly recognizable, despite the fake scars adorning his cheek. His costume includes a jacket with ripped edges, several pieces of sewn-on fabric, a bow tie, and chunky shoes marked with stitches. The character stands in the middle of a secret laboratory where a massive electrical machine produces lightning bolts around two metal antennae. On a shelf, test tubes and flasks filled with mysterious potions await use in new and fantastical experiments. A large cauldron bubbles with magical concoction, while candles and a formula book add an intriguing atmosphere to the room. In one corner of the drawing, an adorable mouse appears behind a pile of old books, just above a carved pumpkin with a mischievous grin. A stone window reveals a night sky with a crescent moon and bats, while a small, smiling spider descends from its web. To color this Halloween illustration, children can use green for Keroppi, purple for his jacket, gray for the machines, and bright colors for the liquids in the vials. The well-defined black outlines and the variety of elements to color allow young artists to develop their imagination while having fun with the typical props of a mad scientist's laboratory. Perfect for a craft activity during the October break, a classroom activity, or a creative family moment, this free drawing of Keroppi dressed as Frankenstein can be printed on an A4 sheet to celebrate Halloween in a fun and original way.