What is a worm doing in the middle of the pic
^this makes it all look fake i mean **bleep**?
There are a number of answers. Could be either, could be more than one.
1. This is the final HUD. The advert also showed old stock footage from previous builds with the confirmed non-final HUD display. Take that as you will.
2. You can unlock and customize different HUD settings as part of the progression system. Superbot have confirmed on more than one occasion that there is A LOT of cosmetic stuff you can unlock, HUD displays could be one of these things.
3. It's an individual game mode that changes the HUD for a specific reason.