Note that I am a complete n00b at lighting, so don’t be surprised is the following post gives you cancer.
Here’s an official Sonic the Hedgehog render.

My question is, how can I achieve this exact kind lighting? I want my Sonic renders to have the same infinitely-lit, barely shaded feel this one does. Does it have to do with compositing in Photoshop, or can it be done within 3DS Max with VRay or Mental Ray (doesn’t matter which)?