>>/150450/
Guess it can be found somewhere on the Internet then :)

Seems there is a difference.
Japanese and PAL has post-game content, and fixes some bugs which the American version had.
European version is also slightly harder:
> damage cap
> counter crest, an item that results in a counter attack if you get hit, has a 50% chance of activating, rather than 100%

:3
More future than 2002!
> he name change is often speculated to have been caused by the fact that Digimon World 2 was not released in Europe, Australia or New Zealand. 
I guess that's why it's called 2003 and not 3. Because there's no 2