To add some cool 'enhancements' to your Javascript Game you could include some of the following: 

Keyboard typing support
Sound effects
Difficulty levels
Score tracking
Animations
Mobile layout
Dark mode
Word packs

I have described how to add SOME of the above features but you, of course, could add in a whole collection of new ones or look up how to add the rest that are described above. 

Good luck and have fun! :) 

1) Difficulty Levels

Goal: control word length + lives.

Step A — Add difficulty selector (HTML)

Add above your buttons:

<select id="difficulty">

  <option value="easy">Easy</option>

  <option value="medium">Medium</option>

  <option value="hard">Hard</option>

</select>

Step B — Difficulty rules (JS)

Inside play():

var difficulty = document.getElementById("difficulty").value;

var settings = {

  easy:   { lives: 12, min: 3, max: 6 },

  medium: { lives: 9,  min: 6, max: 9 },

  hard:   { lives: 6,  min: 9, max: 20 }

};

var config = settings[difficulty];

lives = config.lives;

Step C — Pick words by length

Filter your category words:

var filtered = chosenCategory.filter(word =>

  word.length >= config.min && word.length <= config.max

);

word = filtered[Math.floor(Math.random() * filtered.length)];

2) Score Tracking

Goal: reward wins + speed + accuracy.

Add score variables

At top:

var score = 0;

var roundStart;

Track time

Inside play():

roundStart = Date.now();

Update score on win

Inside your win check:

var timeBonus = Math.max(0, 30 - Math.floor((Date.now() - roundStart) / 1000));

var lifeBonus = lives * 5;

score += 50 + timeBonus + lifeBonus;

document.getElementById("score").innerHTML =

  "Score: " + score;

Add to HTML:

<p id="score">Score: 0</p>

Optional — persistent score

localStorage.setItem("hangmanScore", score);

Load on start:

score = parseInt(localStorage.getItem("hangmanScore")) || 0;

 3) Animations

You can animate UI, not just the stickman.

Letter reveal animation

CSS:

.guess {

  transform: scale(0);

  transition: transform 0.3s;

}

.guess.reveal {

  transform: scale(1);

}

JS (when correct guess):

geusses[i].classList.add("reveal");

Wrong guess shake effect

CSS:

.shake {

  animation: shake 0.4s;

}

@keyframes shake {

  0%,100% { transform: translateX(0); }

  25% { transform: translateX(-5px); }

  75% { transform: translateX(5px); }

}

JS:

document.body.classList.add("shake");

setTimeout(() => document.body.classList.remove("shake"), 400);

Canvas animation idea

Instead of drawing instantly:

setTimeout(drawArray[drawMe], 200);

Creates a staged hangman build.

 4) Dark Mode Toggle

HTML button

<button id="themeToggle">Dark Mode</button>

CSS theme system

:root {

  --bg: #c1d72e;

  --text: #fff;

}

.dark {

  --bg: #111;

  --text: #eee;

}

body {

  background: var(--bg);

  color: var(--text);

}

JS toggle

document.getElementById("themeToggle").onclick = () => {

  document.body.classList.toggle("dark");

  localStorage.setItem(

    "theme",

    document.body.classList.contains("dark")

  );

};

Load saved theme:

if (localStorage.getItem("theme") === "true") {

  document.body.classList.add("dark");

}

5) Word Packs System

Goal: expandable categories.

Replace categories array with packs

var wordPacks = {

  movies: ["alien", "jaws"],

  sports: ["everton", "chelsea"],

  cities: ["madrid", "prague"],

  animals: ["elephant", "giraffe"]

};

Pack selector (HTML)

<select id="pack">

  <option value="movies">Movies</option>

  <option value="sports">Sports</option>

  <option value="cities">Cities</option>

  <option value="animals">Animals</option>

</select>

Load chosen pack

var pack = document.getElementById("pack").value;

chosenCategory = wordPacks[pack];

Bonus — external word packs

You can load JSON files:

fetch("animals.json")

  .then(res => res.json())

  .then(data => wordPacks.animals = data);

This makes the game expandable without editing code.

(optional next steps)

You could also add:

• Level progression
  Combo bonuses
  Sound effects
  Timer mode
  Multiplayer turns
  Animated hangman drawing
  Keyboard typing
  Achievements
  Daily challenge word

Here are a few possibilities that I've outlined 

1) Timer Mode

Step A — Add a timer display

HTML:

<p id="timer">Time: 60s</p>

You can place this near your score or lives.

Step B — Timer variables

JS (at the top of your script):

var timerDuration = 60; // seconds per round

var timerInterval;

var timeLeft;

Step C — Start the timer when a round begins

Inside play():

// Clear previous timer if exists

clearInterval(timerInterval);

timeLeft = timerDuration;

document.getElementById("timer").innerHTML = "Time: " + timeLeft + "s";

// Count down every second

timerInterval = setInterval(function() {

  timeLeft--;

  document.getElementById("timer").innerHTML = "Time: " + timeLeft + "s";

  if (timeLeft <= 0) {

    clearInterval(timerInterval);

    showLives.innerHTML = "Time's up! Game Over";

    // Optionally disable letters

    var letters = document.querySelectorAll("#alphabet li");

    letters.forEach(letter => letter.onclick = null);

  }

}, 1000);

Step D — Stop timer on win/loss

Inside comments() or your win/loss check:

if (lives < 1 || counter + space === geusses.length) {

  clearInterval(timerInterval);

}

2) Animated Hangman Drawing

Instead of drawing instantly, we can animate each body part using setTimeout for a smooth effect.

Step A — Update your drawArray function

Instead of calling drawArray[drawMe]() instantly:

var animate = function() {

  var drawMe = 10 - lives; // assuming lives decrease from 10

  drawPart(drawMe);

}

// Draw one part at a time with animation

function drawPart(i) {

  if (i < 0 || i >= drawArray.length) return;

  // Animate stroke

  context.beginPath();

  context.lineWidth = 2;

  context.strokeStyle = "#fff";

  // Call the original draw function

  drawArray[i]();

  // Optional: animate the next part after delay

  // setTimeout(() => drawPart(i+1), 200);

}

Step B — Animate individual lines

For example, modify your draw function:

function draw(fromX, fromY, toX, toY) {

  let steps = 20;

  let dx = (toX - fromX)/steps;

  let dy = (toY - fromY)/steps;

  let i = 0;

  function animateLine() {

    if (i > steps) return;

    context.moveTo(fromX, fromY);

    context.lineTo(fromX + dx * i, fromY + dy * i);

    context.stroke();

    i++;

    requestAnimationFrame(animateLine);

  }

  animateLine();

}

Now every line of the hangman draws gradually instead of appearing instantly.

Step C — Combine timer + animation

1. Timer runs independently.
   
   

2. When a wrong guess happens:
   
   

lives -= 1;

comments();

animate(); // animated drawing of the next part

3. Timer stops automatically on win/loss.