they probably cut the CHR size down for the NT release too. thatd explain the extra character names in the rom and the JY logo's CHR bank being completely missing rather than just blanked out. although that'd mean if there was a full version out there, itd be at least 1MB, which would make it the largest known Hummer game AFAIK, and indeed the joint largest unlicensed NES game that isnt an RPG or multicart (shared with Street Heroes)