chain saw

ok Im making a game and I need to know how I would make a chain saw blade that spins and every thing:D

Use an animated texture

Animating. Using armatures would be alot easier than IPOs.
Edit: n00b destroyer seems to have a better answer.

Ok and how would I do that

go here for a tutorial made by -[Killer]- on how to set up an animated texture

or for an even BETTER animated texture, i would set up the blade like this:

then make a texture of like 2 saw teeth(with alpha), UV map it around the blade, and do a forum search for the UV scroll script.