diff --git a/assets/map/portal.gif b/assets/map/portal.gif
new file mode 100644
index 0000000..9c55240
Binary files /dev/null and b/assets/map/portal.gif differ
diff --git a/script.js b/script.js
index 2419f50..3cdbd56 100644
--- a/script.js
+++ b/script.js
@@ -89,6 +89,9 @@ imgGrass.title = "It is just grass.."
 const imgIce = new Image();
 imgIce.src = './assets/map/ice.jpg'
 imgIce.title = "Ice is a slippery slope.. You can not turn on it !"
+const imgPortal = new Image();
+imgPortal.src = './assets/map/portal.gif'
+imgPortal.title = "This portal can transport you into the next portal."
 
 // Get wall texture
 const imgWall = new Image();
@@ -143,6 +146,7 @@ function showRulesScreen() {
     // Display map texture
     mapList.appendChild(imgGrass)
     mapList.appendChild(imgIce);
+    mapList.appendChild(imgPortal);
 }
 
 
@@ -358,8 +362,7 @@ async function startGame(gameID) {
                         break;
 
                     case TELEPORTATION:
-                        ctx.fillStyle = "gray";
-                        ctx.fillRect(x*cell_width, y*cell_height, cell_width, cell_height)
+                        ctx.drawImage(imgPortal, x*cell_width, y*cell_height, cell_width, cell_height);
                         break;
                     
                     case ICE: