http://rapidshare.com/files/185660171/NPJH90009.rar.htmlFrom the Japanese PlayStation Store. It should run on any PSP with an up-to-date firmware. If you have a CFW though, you'll need to hold R upon booting up the handheld and go to > Advanced > Advanced Settings (or something like that) and then disable that Game plugin option.
It includes the battlefields 1-3. And perhaps more, but I only played up to the second half of BF3. Saving is disabled, but other that that everything seems to be like in the full game.
This post has been edited by P.P.A.: Jan 18 2009, 09:21 PM