Is it possible to hack sonic r and add additional content to the game?

[takeshi385]

In short is possible to add characters, music , race tracks to sonic?

Now this is what I would like to see is shadow being added.

Is there any any documentation on hacking sonic r for the saturn?

Every time I search I can find squat.

~Takeshi

Also if someone with knowledge we be able to take the time to hack shadow into sonic r the by all means please do .

 

[Chilly Willy]

If it's anything Sonic, there MIGHT be something on it at Sonic Retro. They're really big on hacking/editing ANY version of Sonic. I've seen hacking for Sonic Advance, Sonic Adventure, Sonic Generations...