The games are region free and you will find that if you bought a Japanses version of R&C:ToD and played it on a Euro/US PS3 it will look like a normal Ratchet and so the games are region free. The different Ratchet is chosen by the game disc itself, all versions of the game have both on them but it depends which console your playing it on, the games are region free its THE CONSOLE that isnt regions free.
Just what i think and it does make sense.
End of 2014 Hardware Predictions (03/03/14)
PlayStation 4: 12-15million
Xbox One: 7-10 million
Wii U: 8-9 million (Changed 01/04/2014 from 7-9 --> 8-9 million)