You and your character will have to go through a difficult path through numerous obstacles. Sometimes decisions will have to be made with lightning speed. There are ramifications in the game. Some lead to a dead end, others continue the game. It's up to you to decide.
On the computer: Run forward - don't press anything. Run to the right - the D key. Run to the left - the A key. On a mobile device: Run forward - don't press anything. Run to the right - tap on the right side of the screen. Run to the left - tap on the left side of the screen.