diff --git a/app.js b/app.js
index e95b3ce..82a4905 100644
--- a/app.js
+++ b/app.js
@@ -541,6 +541,35 @@ document.addEventListener('DOMContentLoaded', function () {
     let downloaderWorker = null;
     let missingGameFiles = [];
 
+    // Update popup elements
+    const updatePopup = document.getElementById('update-popup');
+    const updateReloadBtn = document.getElementById('update-reload-btn');
+    const updateDismissBtn = document.getElementById('update-dismiss-btn');
+
+    function showUpdatePopup() {
+        if (updatePopup) {
+            updatePopup.style.display = 'flex';
+        }
+    }
+
+    function hideUpdatePopup() {
+        if (updatePopup) {
+            updatePopup.style.display = 'none';
+        }
+    }
+
+    if (updateReloadBtn) {
+        updateReloadBtn.addEventListener('click', () => {
+            window.location.reload();
+        });
+    }
+
+    if (updateDismissBtn) {
+        updateDismissBtn.addEventListener('click', () => {
+            hideUpdatePopup();
+        });
+    }
+
     if ('serviceWorker' in navigator) {
         Promise.all([
             configManager.init(),
@@ -548,6 +577,25 @@ document.addEventListener('DOMContentLoaded', function () {
         ]).then(([configResult, swRegistration]) => {
             checkInitialCacheStatus();
             showOrHideGraphicsOptions();
+
+            // Check if there's already a waiting service worker (update ready)
+            if (swRegistration.waiting) {
+                showUpdatePopup();
+            }
+
+            // Listen for new service worker updates
+            swRegistration.addEventListener('updatefound', () => {
+                const newWorker = swRegistration.installing;
+                if (newWorker) {
+                    newWorker.addEventListener('statechange', () => {
+                        // When the new worker is installed and waiting, show the update popup
+                        // Only show if there's an existing controller (this is an update, not first install)
+                        if (newWorker.state === 'installed' && navigator.serviceWorker.controller) {
+                            showUpdatePopup();
+                        }
+                    });
+                }
+            });
         }).catch(error => {
             console.error('Initialization failed:', error);
         });
diff --git a/bonus.webp b/bonus.webp
new file mode 100644
index 0000000..dd388ac
Binary files /dev/null and b/bonus.webp differ
diff --git a/style.css b/style.css
index f12dc7b..900231a 100644
--- a/style.css
+++ b/style.css
@@ -1136,4 +1136,166 @@ select {
         opacity: 0;
         transform: translate(var(--tx), var(--ty)) rotate(var(--rot)) scale(0.5);
     }
+}
+
+/* Update notification popup */
+.update-popup {
+    position: fixed;
+    bottom: 20px;
+    right: 20px;
+    z-index: 10001;
+    display: flex;
+    align-items: flex-end;
+    gap: 0;
+    animation: popup-bounce 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
+}
+
+@keyframes popup-bounce {
+    0% {
+        transform: translateX(120%);
+        opacity: 0;
+    }
+    100% {
+        transform: translateX(0);
+        opacity: 1;
+    }
+}
+
+.update-popup-content {
+    position: relative;
+    display: flex;
+    flex-direction: column;
+    align-items: flex-end;
+}
+
+.update-speech-bubble {
+    position: relative;
+    background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 100%);
+    border: 2px solid #FFD700;
+    border-radius: 12px;
+    padding: 15px 18px;
+    margin-bottom: 10px;
+    margin-right: -20px;
+    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
+    max-width: 200px;
+}
+
+.update-speech-bubble::after {
+    content: '';
+    position: absolute;
+    bottom: -12px;
+    right: 30px;
+    border-width: 12px 10px 0 10px;
+    border-style: solid;
+    border-color: #FFD700 transparent transparent transparent;
+}
+
+.update-speech-bubble::before {
+    content: '';
+    position: absolute;
+    bottom: -8px;
+    right: 32px;
+    border-width: 10px 8px 0 8px;
+    border-style: solid;
+    border-color: #1a1a1a transparent transparent transparent;
+    z-index: 1;
+}
+
+.update-message {
+    color: #f0f0f0;
+    font-size: 0.95em;
+    font-weight: 500;
+    margin: 0 0 12px 0;
+    line-height: 1.4;
+}
+
+.update-reload-btn {
+    width: 100%;
+    padding: 10px 16px;
+    background-color: #FFD700;
+    color: #000;
+    border: none;
+    border-radius: 6px;
+    font-size: 0.9em;
+    font-weight: bold;
+    cursor: pointer;
+    transition: all 0.2s ease;
+}
+
+.update-reload-btn:hover {
+    background-color: #fff;
+    transform: scale(1.03);
+}
+
+.update-dismiss-btn {
+    position: absolute;
+    top: -8px;
+    right: -8px;
+    width: 24px;
+    height: 24px;
+    padding: 0;
+    background: #333;
+    color: #888;
+    border: 2px solid #555;
+    border-radius: 50%;
+    font-size: 14px;
+    line-height: 1;
+    cursor: pointer;
+    transition: all 0.2s ease;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    z-index: 2;
+}
+
+.update-dismiss-btn:hover {
+    color: #fff;
+    border-color: #FFD700;
+    background: #444;
+}
+
+.update-character {
+    width: 120px;
+    height: auto;
+    border-radius: 12px;
+    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.5));
+    animation: character-wave 2s ease-in-out infinite;
+    animation-delay: 0.5s;
+}
+
+@keyframes character-wave {
+    0%, 100% {
+        transform: rotate(0deg);
+    }
+    25% {
+        transform: rotate(2deg);
+    }
+    75% {
+        transform: rotate(-2deg);
+    }
+}
+
+@media (max-width: 480px) {
+    .update-popup {
+        bottom: 10px;
+        right: 10px;
+    }
+
+    .update-speech-bubble {
+        max-width: 160px;
+        margin-right: -15px;
+    }
+
+    .update-character {
+        width: 90px;
+    }
+
+    .update-message {
+        font-size: 0.85em;
+    }
+
+    .update-reload-btn {
+        font-size: 0.85em;
+        padding: 8px 12px;
+    }
 }
\ No newline at end of file
diff --git a/workbox-config.js b/workbox-config.js
index f31828c..f9c0294 100644
--- a/workbox-config.js
+++ b/workbox-config.js
@@ -7,7 +7,8 @@ module.exports = {
         'island.webp', 'isle.js', 'isle.wasm', 'poster.pdf', 'read_me_off.webp',
         'read_me_on.webp', 'run_game_off.webp', 'run_game_on.webp', 'shark.webp',
         'uninstall_off.webp', 'uninstall_on.webp', 'app.js', 'style.css', 'manifest.json',
-        'install.webp', 'install.mp3', 'downloader.js', 'debug.js', 'debug.html', 'ogel.webp'
+        'install.webp', 'install.mp3', 'downloader.js', 'debug.js', 'debug.html', 'ogel.webp',
+        'bonus.webp'
     ],
     swSrc: 'src/sw.js',
     swDest: 'sw.js',