diff --git a/index.html b/index.html
index cedc6e4..85990f3 100644
--- a/index.html
+++ b/index.html
@@ -8,6 +8,38 @@
   </head>
   <body>
     <div id="game"></div>
+    <script>
+      (() => {
+        const showBootError = (message) => {
+          if (document.getElementById('boot-error')) return;
+          const box = document.createElement('div');
+          box.id = 'boot-error';
+          box.style.cssText = [
+            'position:fixed',
+            'inset:0',
+            'z-index:9999',
+            'display:flex',
+            'align-items:center',
+            'justify-content:center',
+            'padding:24px',
+            'box-sizing:border-box',
+            'background:#10251d',
+            'color:#f4ead2',
+            'font:16px/1.45 system-ui,sans-serif',
+            'text-align:center'
+          ].join(';');
+          box.textContent = 'Squirrel Forest could not start. ' + message;
+          document.body.appendChild(box);
+        };
+
+        window.addEventListener('error', (event) => {
+          showBootError(event.message || 'A browser error occurred.');
+        });
+        window.addEventListener('unhandledrejection', (event) => {
+          showBootError(String(event.reason || 'A startup promise failed.'));
+        });
+      })();
+    </script>
     <script type="module" src="/src/main.js"></script>
   </body>
 </html>
diff --git a/src/main.js b/src/main.js
index 1a5a877..59d2acf 100644
--- a/src/main.js
+++ b/src/main.js
@@ -136,11 +136,11 @@ class ForestScene extends Phaser.Scene {
     g.clear();
     g.fillStyle(0x35684b, 1);
     for (let i = 0; i < 5; i++) {
-      g.fillEllipse(17 + i * 2, 22 - i * 4, 9, 25, -0.7 + i * 0.25);
+      g.fillEllipse(17 + i * 2, 22 - i * 4, 9, 25);
     }
     g.fillStyle(0x6aa56d, 1);
     for (let i = 0; i < 4; i++) {
-      g.fillEllipse(12 + i * 6, 25 - (i % 2) * 6, 7, 19, 0.6 - i * 0.25);
+      g.fillEllipse(12 + i * 6, 25 - (i % 2) * 6, 7, 19);
     }
     g.generateTexture('fern', 42, 44);
 
@@ -178,8 +178,8 @@ class ForestScene extends Phaser.Scene {
 
     g.clear();
     g.fillStyle(0xb4d9f2, 0.9);
-    g.fillEllipse(8, 8, 12, 7, -0.45);
-    g.fillEllipse(16, 8, 12, 7, 0.45);
+    g.fillEllipse(8, 8, 12, 7);
+    g.fillEllipse(16, 8, 12, 7);
     g.fillStyle(0x3b3130, 1);
     g.fillEllipse(12, 9, 4, 10);
     g.generateTexture('butterfly', 24, 18);
@@ -582,7 +582,7 @@ class ForestScene extends Phaser.Scene {
 }
 
 const config = {
-  type: Phaser.AUTO,
+  type: Phaser.CANVAS,
   parent: 'game',
   width: 1280,
   height: 720,