If you're gonna send your robot into Horror Mode, it should be explained better.

There's really no clear answer how M3GAN goes from caretaker to killer. And Gemma built something this complex on only a $100,000 budget? At least come up with something more plausible.

The acting isn't the best. You'd never know Gemma lost a sister. Allison Williams playing the role was really bad. The girl playing Cady wasn't much better. Just a few things kept this movie from being really good.