1: [Young]
A Congle youngling - or ‘Congling’ as it is sometimes affectionately called - must be the happiest monster around. Look how it sways to the music with nary a care in the world! Both bow-legged and duck-footed - far easier to play its eggshell drum that way - the Congle is nonetheless sure-footed as it keeps time with its monster friends. Puckish and affectionate, cuddly Congle is largely a rascal and would happily drum 140 beats-per-minute for a slice of pistachio-licorice pie.
2: [Adult]
The mature Congle is enthralled with the idea of using one object in diverse ways, hence the continued use of its eggshell drum. Another example: hidden by its drum most of the time, a Congle's tummy is inconceivably soft. It makes a great pillow for when other Monsters need a quick nap, and it's always more than happy to oblige. When the drum invariably wears out from so much use, it gets upcycled into a snazzy ottoman of decorative planter.
3: [Prismatic]
This Congle returned from the Prism Gate forever changed! The Monster's body plan has been entirely reversed, with an oversized head replacing its drum, and a tangle of limbs taking the place of its arms and legs - extraordinary!