It can help you experience something before it happens, and it also provides entertainment for some people to see things from a first person perspective. Almost as if they were in the characters shoes.
PowerPoint would be best for multi-media presentations. It allows you to include pictures and videos to make your presentation more effective. You can also select the appropriate themes, color schemes, animations, and transitions to make it more appealing as well.
A, most don't have a pre-plan process