What should you draw to play as Baku in Monster Rancher DS?

To play as Baku in Monster Rancher DS, you should draw a specific combination of symbols or shapes that resemble its characteristics. Typically, Baku is associated with a creature that has a somewhat elephantine appearance with a large trunk and distinctive ears. Drawing simple shapes like circles for the body and ears, along with a trunk shape, will help you create a valid drawing to unlock Baku. Remember to follow any specific guidelines provided in the game for the best results!