PXLPETs can grow up too! This PXLPET edition is the first to show PXLPETs in their various evolutions.

PXLPET 4-6 actually consists of two friends. They have known each other from an early age and are inseparable. One of the two PXLPETs is a bird that unfortunately notices as it grows up that its wings do not grow, which means that it will probably never be able to fly. Fortunately, his friend is an inventor and so he succeeds in developing a Jetpack over time. From that day on, they only look at the world on the fly.