The Kur'Pupu cannot change mass, and therefore the target creature must be of a similar mass to the Kur'Pupu. The Kur'Pupu cannot shapeshift into non-DNA-based lifeforms, so robots and androids cannot be the target creatures. Also, the length of time it takes for a Kur'Pupu to "download" a target creature's DNA information via high-frequency transmission significantly limits its shapeshifting opportunities.
