Yeah, there are the ambient sounds in the level files where the lines are as well.
By the way, I decided to download the ToD Japanese ('Ratchetto & Kuranku FUTURE' demo, and it's XMB background was different from the US and EU versions, as it also had the Japanese Ratchet with green trousers and the black eyebrows. That led me to think there might be other unseen stuff on the other versions of the disks (the one I read with the BD drive was European and I also have the American one because I find it far neater than the European one). I tried to read the American disk with the drive, but the computer locked up while trying to browse the files because of the issues in the BD drive. To me all looked similar to the European version, but the Japanese on must be different as neither the European nor the American disks had the Japanese XMB background as an option.
Even though the American disk shows the American name "Ratchet & Clank Future: Tools of Destruction" in the XMB menu, it still chooses the European localisation "Ratchet & Clank: Tools of Destruction" while trying to play, as it must recognise my PS3 as a European one. To actually play the Japanese game as it is in Japan one should probably have a Japanese console, or otherwise it would just choose the local localisation. Even changing the language doesn't seem to help.
To me it felt the Japanese Ratchet even had a different expression on his face (when compared to that Western World one above), but maybe the black eyebrows just distracted me. I thought of buying the Japanese version as well, but paying €24 for the game and another €25 for the shipping doesn't really sound that attractive. At least the American version was as cheap as the European one with shipping included.