Wheel animals!!! Another one for the filtertube/seedling/vaseplant phylum!!
The Wheel Flowelions are very smart predators. They climb to the top of hills and slopes, and wait for their prey to get in the right position. When their prey is under them, they will deinflate and retract their many "legs", then roll down at great speeds and crush their prey with great weight and metallic bone plates, instantly killing their prey and breaking their bones.
Wheel Flowelions normally walk by pushing themselves around with their legs, and only use rolling when they already have an impulse or are rolling downhil. Their outer body layers have many shock absorption mechanisms, like fluid-filled sacks and gelatinous blubbler, although i will get into the details of how those work later.
Also, if you are questioning how they eat, their mouth actually is an proboscis that can expand out
Inspsired by vathyzoics' rotozoans. My beloved rolling cucumbers <3