Patapon preview at 1-up.

"Patapon is the story of a small tribe of creatures whose physical features are dominated by a single giant eye. With no god to lead them, their numbers have dwindled, but they call out to the heavens for guidance that you -- Kami Pon -- will offer. As they can see far, they pray to you to lead them far across the world.

The pon creatures, despite being about 80% eyeball, can only receive communication in the form of the drum (represented by the Sixaxis controller). In the three-level playable demo on the Tokyo Game Show showroom floor, there were only two patterns to learn: pata-pata-pata-pon (advance the bannerman / rally to the banner) and pon-pon-pata-pon (advance from the bannerman and attack). The objective of each stage is to lead the pon creatures to the goal using the appropriate rhythms to administer commands."

Full Source: 1-up