A baby Grumpy is typically very squishy because it uses its body to squirm and burrow its way through the earth. In its later stages, it becomes quite a formidable beast, using its long, muscular arms to break apart vegetation to eat. Grumpy is actually a gentle pet most of the time, and a rather benevolent soul despite its rough exterior. It will rage if its loved ones are under attack, but for the most part, is simply disgruntled at the small inconveniences of life.