They appear to be a Mix-and-Match toy who is stuck in the Digital Circus 

Zooble is very grouchy and irritable and can be seen getting quite annoyed when a piece of them happens to be in the wrong place. Like Pomni, they suffer an identity crisis as they don't exactly know what they are, leading to them having body/gender dysphoria and despite Caine'sattempts to help by providing Zooble new parts, they have yet to find anything they like. This irritability leads to Zooble's lack of enthusiasm when it comes to Caine's adventures,[6] more often choosing to opt out of them and do their own thing for the day.