[XeroMedia]

Try adding some RBcollectors to the character and some other object (moving preferably) and then add a ragdoll constraint to the character. I have been doing some recent tests with Reactor and I'm learning alot to it now. You can then go to Reactor's preview animation and see if the character falls and bounces around like a rag doll....I'm still not sure if you have to rig the character but my guess would be yes.