When the kids are in the virtual reality disc, and are flying over the green forests, they all fall and as they fall down through the branches a black harness wire can be seen attached to one of them.
At the end of the first movie, Jobe's mind made the complete transfer into VR space entirely, making his phone call that would signify his taking control of the world. This movie completely leaves that out.
At the end of the first movie, Jobe's body was hideously stretched by his complete transfer into VR space, and there is no way he could have survived in this movie.