Kudo Tsunoda of Microsoft Game Studios uttered words of doom during an interview at the Tokyo Game Show, revealing that it will not be possible to "patch" current Xbox 360 games to work with the upcoming Project Natal technology. Actually, the words he used were "not likely," which could almost mean that there's a small chance of a possibility, although highly improbable.
According to the interview conducted by Destructoid, Microsoft was able to alter third-party titles to work with Project Natal for the demonstration, however the company had to alter a "significant amount" of the code. Tsunoda said that a simple, downloadable update will not be possible due to those reasons alone, and would ultimately force developers and publishers to recreate and publish special versions of the game in its entirety.
With that said, 3rd party publishers may eventually take the plunge and develop special Project Natal editions for their current titles, but will it be worth the effort? Will gamers want to shell out additional funds for an enhanced version? Publishers may want to set their sights on the Platinum Hits collection if they wish to go all Natal, targeting the $19.99 games to keep the end-user cost under control.
Currently the Platinum Hits collection includes F.E.A.R., BioShock, Gears of War, Mass Effect, and many more great classic titles.