Code from

OregonTrail_shooting.cs

public static int AskGunSkill(IIO io)
{
    io.Display("How good a shot are you with your rifle?");
    io.Display("  (1) Ace Marksman,  (2) Good Shot,  (3) Fair to Middlin'");
    io.Display("         (4) Need more practice,  (5) Shaky Knees");
    io.Display("Enter one of the above . The better you claim you are, the");
    return io.InputValue("faster you'll have to be with your gun to be successful... ", 1, "Enter 1-5", 5,
        "Enter 1-5");
}



private static readonly string[] gunWords = new string[] { "BANG", "BLAM", "POW", "WHAM" };

public static int Shoot(GameContext context)
{
    var goal = gunWords[context.Rnd.Next(gunWords.Length)];

    var timer = new Stopwatch();
    timer.Start();
    var response = context.IO.InputString($"Type: {goal}: ");

    var seconds = (int) timer.Elapsed.TotalSeconds;
    seconds -= context.GunSkill - 1;

    if (seconds < 0) seconds = 0;

    if (String.Compare(goal, response, StringComparison.CurrentCultureIgnoreCase) == 0)
        seconds = 100;

    context.IO.Display($"Seconds: {seconds}");
    return seconds;
}