Owners of Japanese PS3's are reporting that there is no blood in the Uncharted game even though they have purchased the NTSC copy of the game. So it seems as if the censoring is actually being handled by the Japanese console itself.
To quote K0RBEN-DALLAS: I got my US copy of Uncharted today and my PS3 is a 60GB japanese and there is no blood when i shoot the enemys.
Anyone here has a 60GB japanese PS3 with a US copy of Uncharted that can confirm there is blood when shooting enemys? Video below!