New unopened "Shark Stack-Up! Wooden Balancing Game" by Mudpuppy is a fun and educational game that challenges players to balance wooden sharks of varying sizes on a seesaw. With beautiful illustrations by Kristi Carder, this game is sure to engage both children and adults alike. The game is designed by Mudpuppy and published by Mudpuppy Press, making it a high-quality and unique addition to any game night or playtime. Perfect for those who enjoy puzzles and games that require careful concentration and skill.