Flashlight is a pay-for plugin soon to be available on the Scirra store (and Itch.io). It is designed to behave like a light source that casts shadows from Solid objects. It displays images and animations like a Sprite, but it detects overlapping Solids and clips the rendered image to make it look like it has shadows. The source of the light is the Flashlight Origin. Here's a quick demo:
If you've bought the plugin (thank you!) then this tutorial is designed to help you use all of its functions.