Actually, if he's savvy enough, he could. He'd need to have normal and depth maps for the sprites. Then all it is, is using shaders and having the bon fire be a reddish-orange point light (with dynamic brightness values to represent a growing/shrinking effect).
I know some 2D games use it, buut I don't really play games that much anymore so I don't have actual game refs.
Here's some non-game references though.
https://www.youtube.com/watch?v=-D0UWzJYJl4
another one, but more subtle and with particles. I like this example better.
https://www.youtube.com/watch?v=a8uZUqIEsoI
I know some 2D games use it, buut I don't really play games that much anymore so I don't have actual game refs.
Here's some non-game references though.
https://www.youtube.com/watch?v=-D0UWzJYJl4
another one, but more subtle and with particles. I like this example better.
https://www.youtube.com/watch?v=a8uZUqIEsoI