I found this game to be super engaging while also being super simple at the same time.
The choice of putting the all guts no glory option of shooting the gun multiple times is great (I actually managed to survive it on the first try!). It really emphasizes the fact that the choices you make have the chance to affect the other person as well. The impact of having this mechanic in the game is immediate as you are either filled with a rush of euphoria if you live or immediate disappointment if you die. This also applies to the game if you play it in the standard way as well. It is clear that each choice has its own, randomized, specific risk and that's what makes it so engaging.
I do have an issue with the running away option however, because I don't feel like there is enough reason to use it other than being labelled as a coward.
Also, I did encounter a game-breaking technical issue where I was unable to move on or restart the game after I fired the gun and survived, leaving only 4 bullets left in the chamber. This did not happen every time, however when it did, I was unable to continue playing the game because I couldn't choose anything.