5 MINUTES is an interactive zombie film and in this universe the first symptoms that someone is becoming a zombie is a loss of memory within the first five minutes of exposure. So throughout the film you are presented with relatively simple tasks to prove your memorization skills are intact.
This film is a bit tense especially if you choose to play along on a harder setting. And what are tasks that you would think are no brainers end up becoming a bit harder than you expect because you are under a time constraint and there are hungry zombies clamoring to take a bite out of you during the whole thing.