>>7935651Its pretty simple really. They are really well designed robot animals. Each one has a ton of personality, the right mix of cute and tough. The design limitation that they all have to be capable of transforming into a cube for storage gives them a unified design aesthetic so that the entire series of critters, despite having wildly different colors and being their own creature, fits in and matches up perfectly with the others. I like them out of their cube forms the most obviously, but the fact that they can all transform into a compact form for storage makes it really convenient to collect a ton of them and display them together as a big tower of adorable robot animals. For me personally there is also a ton of heart that goes into these little dudes, and different aspects of the actual animals actually come out through their gimmicks. The bird has a perch and can fold its wings up in a really nice resting position. The Penguins magnetically huddle together to mimic real penguins in the cold. The Spider actually has a retractable grappling line. Its just fun, easy to collect and super appealing to me.