I didn't want to post anything until i could test this for myself... but amazingly enough, it works. How to make your original xbox play 360 games
I had trouble with the part where you swap out DOA4, put in DOA ultimate, then reboot. After the second try i got it working.
Dammit, i knew i should have watermarked the Not playing screen. Stealing my damn picture lol. http://www.xbox-scene.com/xbox1data/sep/EEFElVAFEpGmnBtwYL.php Thats where i had it posted
wow. I tried it the other way around with a polygon enhancer chip on a xbox360 with halo2 and all graphic was so smooth that all objects turned into spheres