A possible screenshot of the viva has people imagining it’s like facing end-of-level baddies in a computer game.
After all of the trials and tribulations of doing research, your examiners appear through the fog, two mysterious and challenging foes! Whatever you’ve done before, the rules don’t apply to them!! They’re bigger than the other baddies, tougher, hit harder and if you’re not careful you’re doomed!!!
Well. That’s one way to look at things.
If we accept it then we have to accept everything else from the picture: you’ve reached the end of the level. You’ve fought your way through, and you’ve got there, and it’s not by accident. While a boss battle can seem much tougher, they’re based around all of the same moves that you’ve done in the rest of the game. There’s a different focus maybe, and a different challenge, but it’s well within your capabilities.
There are no cheat codes in the viva – but you don’t need them if you’ve got there.