Mattel Blokus Keychain Game Mini Size Original Gameplay Full Size Fun NIPS The Mattel Blokus Keychain Game is a travel game designed for two players, featuring the original Blokus gameplay in a mini size that is perfect for on-the-go entertainment. Suitable for ages 7 and up, this game provides hours of fun for children and adults alike. With its compact size and keychain packaging, it is a convenient and versatile option for playing Blokus wherever you are.