Revise paste toyGun.ino

#include <Adafruit_NeoPixel.h>

#ifdef __AVR__
  #include <avr/power.h>
#endif
uint32_t prevTime;
// Which pin on the Arduino is connected to the NeoPixels?
// On a Trinket or Gemma we suggest changing this to 1
#define PIN4          10           //data pin of pixel strip
// How many NeoPixels are attached to the Arduino?
#define NUMPIXELS      12

Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN4, NEO_GRB + NEO_KHZ800);

const int buttonPin = 2;         // the number of the pushbutton pin
const int ledPin = LED_BUILTIN;  // the number of the LED pin

int buttonState = 0;         // variable for reading the pushbutton status

//These are colours I use frequently
uint32_t c=0x000000;
uint32_t r=0xFF0000;
uint32_t g=0x00FF00;

int counter = 8;

void reload(){
  Serial.println("I'm Realoading");
  for(int i = 0; i<=NUMPIXELS; i++){
    pixels.setPixelColor(i, r);
    delay(99);
    pixels.show();
    }
  counter = 8;
  delay(1300);
  } 
  
void unload(){
  //pew pew!
    digitalWrite(ledPin, HIGH);
    Serial.print("Fire! ");
    counter = counter - 1 ;
    pixels.setPixelColor(counter, c);
    pixels.show();
    Serial.println( counter);
    delay(300);
    digitalWrite(ledPin, LOW);
  }
void initz(){
  //initialize: start out with a full clip
    //I learned you cant call a function "init()"
    for(int i = 0; i<=NUMPIXELS; i++){
    pixels.setPixelColor(i, g);
    delay(88);
    pixels.show();
    }
  counter = 8;
  }

void setup() {
Serial.begin(9600);
  pinMode(ledPin, OUTPUT);
  pinMode(buttonPin, INPUT);
  pinMode(PIN4,OUTPUT );
  pixels.begin();  
  pixels.setBrightness(55);
  initz();
}

void loop() {
  
  buttonState = digitalRead(buttonPin);
  if (buttonState == HIGH) {
 unload();
  } else {
    // turn LED off:
    digitalWrite(ledPin, LOW);
  }
  if (counter<=0){
    reload();
    }
}