Bingowings said:
It was implied in the Lester version (without the face to face).
He calls to his father.
The crystal glows.
Later in the film we discover the ray chamber's effects can be reversed, projected outside and the chamber can also act as a shield.
No exposition is necessary just patience.
But then he throws the shield from his costume (and yet it's still on his costume) and it turns into some kind of "super-net", and he makes everyone forget stuff by kissing them.
Huh?