What they are named:
v1- Kory (Boy, gen6) Named after mi character in MMC
white v2- Aram (Boy, gen2) Nameed after the magical prince Aram in MeruPuri
blue v2- Neko (Boy, gen1) Means "cat" in japanese
red v2- Keii (Boy, gen5) Shortened version of "Keiichiro", TMM
blue v3- Usagi (Girl, gen2)...