The game is simple. You have an allotted amount of time to press the button 100 times. Also, there are 5 LED lights on the breadboard. Every 10 presses, one lights up. Once you hit 60 they start to turn off one by one. If you get 100 presses in the time limit then a message comes up declaring you "The Winner!". If you lose, it tells you that you lost and to please try again. There is a time limit between when you can restart the game.
-We used the float, long, and millis systems to measure our time.
-5 LED Pins
-1 Push Button
- Named the LED buttons
- An elapsed time = start time - millis()
- A losing and winning system
- Messages that pop up when you win and lose
-Automated reset timer when you lose
- customized LED light patterns when you win and when you lose
- Extensive code, majoring with "if" statements.

Step 1: Code

int switchPin = 2;              // switch is connected to pin 2
int val;                        // variable for reading the pin status
int buttonState;                // variable to hold the button state
int buttonPresses = 0;          // how many times the button has been pressed
int ledPin = 13;
int ledPin1 = 12;
int ledPin2 = 11;
int ledPin3 = 10;
int ledPin4 = 9;
long interval = 100;
long previousMillis = 0;
float startTime;
float elapsedTime;
void setup() {
pinMode(switchPin, INPUT);    // Set the switch pin as input
Serial.begin(9600);           // Set up serial communication at 9600bps
buttonState = digitalRead(switchPin);   // read the initial state
}

void loop(){
val = digitalRead(switchPin);      // read input value and store it in val
if (val != buttonState) {          // the button state has changed!
    if (val == LOW) {                // check if the button is pressed
      buttonPresses++;               // increment the buttonPresses variable
      Serial.print("Button has been pressed ");
      Serial.print(buttonPresses);
      Serial.println(" times");

      if (buttonPresses==1) {
        (startTime = millis());
      }
      else if (buttonPresses>1) {
        elapsedTime = millis() - startTime;

        Serial.print( (elapsedTime / 1000));
        Serial.println(".");
      }
    }
}
if (elapsedTime>15000)
{
    buttonPresses=0;
    elapsedTime=0;
    Serial.print("You Lose");
    digitalWrite (ledPin, LOW);
    digitalWrite (ledPin1, LOW);
    digitalWrite (ledPin2, LOW);
    digitalWrite (ledPin3, LOW);
    digitalWrite (ledPin4, LOW);
    delay(10000);
}
if (buttonPresses==100)
{
    (buttonPresses=0);
    elapsedTime=0;
    Serial.print("You WIN!!");
    digitalWrite (ledPin, HIGH);
    delay(100);
    digitalWrite (ledPin1, HIGH);
    delay(100);
    digitalWrite (ledPin2, HIGH);
    delay(100);
    digitalWrite(ledPin3, HIGH);
    delay(100);
    digitalWrite (ledPin4, HIGH);
    digitalWrite (ledPin, LOW);
    digitalWrite (ledPin1, LOW);
    digitalWrite (ledPin2, LOW);
    digitalWrite (ledPin3, LOW);
    digitalWrite (ledPin4, LOW);
    delay(2300);
    digitalWrite (ledPin, HIGH);
    digitalWrite (ledPin1, HIGH);
    digitalWrite (ledPin2, HIGH);
    digitalWrite (ledPin3, HIGH);
    digitalWrite (ledPin4, HIGH);
    delay(5000);
    digitalWrite (ledPin, LOW);
    digitalWrite (ledPin1, LOW);
    digitalWrite (ledPin2, LOW);
    digitalWrite (ledPin3, LOW);
    digitalWrite (ledPin4, LOW);
    delay(2300);
}

if (buttonPresses==10){
    pinMode(ledPin, OUTPUT);
    digitalWrite (ledPin, HIGH);
}
if (buttonPresses==20) {
    pinMode(ledPin1, OUTPUT);
    digitalWrite (ledPin1, HIGH);
}
if (buttonPresses==30) {
    pinMode (ledPin2, OUTPUT);
    digitalWrite (ledPin2, HIGH);
}
if (buttonPresses==40){
    pinMode(ledPin3, OUTPUT);
    digitalWrite (ledPin3, HIGH);
}
if (buttonPresses==50) {
    pinMode(ledPin4, OUTPUT);
    digitalWrite (ledPin4, HIGH);
}
if (buttonPresses==60){
    pinMode(ledPin, OUTPUT);
    digitalWrite (ledPin, LOW);
}
if (buttonPresses==70) {
    pinMode(ledPin1, OUTPUT);
    digitalWrite (ledPin1, LOW);
}
if (buttonPresses==80) {
    pinMode (ledPin2, OUTPUT);
    digitalWrite (ledPin2, LOW);
}
if (buttonPresses==90){
    pinMode(ledPin3, OUTPUT);
    digitalWrite (ledPin3, LOW);
}
if (buttonPresses==100) {
    pinMode(ledPin4, OUTPUT);
    digitalWrite (ledPin4, LOW);
}
if (buttonPresses==100) {
    buttonPresses=0;
}

buttonState = val;                 // save the new state in our variable
}

Step 2: Serial Monitor(Winner)

The game is equipped with its own coding system that includes a on screen text that appears when you win. Also, it keeps track of your button presses and the amount of time it takes.