Working on marketing and b-roll for the game, Mykola Yeriomin used this ability to exercise as director and inserted a few subtle scenes in the background. The most obvious is him jumping (acting as if he was scared but still stoic) when there's a hockey rumble near.
Mykola Yeriomin and Vera Krechetova could be noticed in the background in nearly every second minute of the first period.
On 42nd minute camera accidentally caught a boy in the audience chewing the belt of the bag. Also, a man in Guy Fawkes/Anaonymous mask (popularized by V for Vendetta (2005)) can be seen in the audience.