If you'd like to know more, PS3 Fanboy has a great interview with Insomniac's Ryan Schneider as he explains the different Ratchets. He says, "In Japan ... they will write their own backstory and they have their own sensibilities. We actively support and encourage that and they're great in identifying what works in that market. Of course, we don't complain because we're one of the few successful Western franchises there period." Although the Japanese Ratchet won't be unlockable in the US version, the Japanese language mode will.