Sinister Container

The Sinister Container is a treasure in Pikmin: The Bulblaxian War. It is dropped by an attacking Burrowing Snagret at Base Camp. It is part of the Mechanical Statue Series. It's value is only 100 pokos. In reality, it is a hexagonal prism shaped Bakugan. It's not actually a container, but it might look like one.

Strategy
Simple, really. Just defeat the Burrowing Snagret found at Base Camp.