By playing the patched The Ogre version, you get access to the full story that Level-5 intended, including the dramatic appearance of the Ogre team and their clash with Inazuma Japan.
To apply the patch, you generally need a clean, untrimmed Japanese ROM of the game and a patching tool like GBAtemp.net Obtain the Patch: Inazuma Eleven 3 Nds English Patch Download