>>6132837Busou Shinki don't have an actual "ab crunch" either, they do the underboob balljoint just like Figmas. They typically have much better range due to the design of their bodies though. Have you ever played with a Shinki? They're all rail-thin and there are compromises made like huge divots carved out of the back of their thighs to allow for their range of motion.
It's not only their body shape though, some of it is actually due to some pretty brilliant engineering. For instance, their hip joints. They swing out and upwards just like the hinge on car doors, which allows Shinkis to hug their knees to their chest--quite a difficult feat for the majority of toys.
