diff --git a/www/html/Game/public/js/play.js b/www/html/Game/public/js/play.js
index d68412e..d96e86d 100644
--- a/www/html/Game/public/js/play.js
+++ b/www/html/Game/public/js/play.js
@@ -328,13 +328,17 @@
     return !!(mapData && mapData.gameType === 'stack' && (currentPlayMapId() || '').trim() === STACK_TOWER_MISSION_MAP_ID);
   }
 
-  function stackTowerScrollBgDrawActive() {
-    if (!stackTowerScrollBgMapEligible() || stackTowerScrollBgOff) return false;
+  function stackTowerScrollBgImagesReady() {
+    if (!stackTowerScrollBgMapEligible()) return false;
     const a = stackTowerScrollBgIntroImg;
     const b = stackTowerScrollBgLoopImg;
     return !!(a && a.complete && a.naturalWidth && b && b.complete && b.naturalWidth);
   }
 
+  function stackTowerScrollBgDrawActive() {
+    return stackTowerScrollBgImagesReady();
+  }
+
   function reloadStackTowerScrollBgFromMap() {
     stackTowerScrollBgIntroImg = null;
     stackTowerScrollBgLoopImg = null;
@@ -345,7 +349,6 @@
     stackTowerScrollBgSpeedPxPerSec = Math.max(8, Math.min(400, Math.floor(Number(raw.speedPxPerSec)) || 40));
     const dirRaw = String(raw.scrollDirection || raw.direction || 'up').toLowerCase();
     stackTowerScrollBgFlowDown = (dirRaw === 'down' || dirRaw === 'top' || dirRaw === 'toptobottom');
-    if (stackTowerScrollBgOff) return;
     const introSrc = (typeof raw.introImage === 'string' && raw.introImage.length) ? raw.introImage : STACK_TOWER_SCROLL_BG_DEFAULT_INTRO;
     const loopSrc = (typeof raw.loopImage === 'string' && raw.loopImage.length) ? raw.loopImage : STACK_TOWER_SCROLL_BG_DEFAULT_LOOP;
     let pending = 2;
@@ -440,8 +443,32 @@
     ctx.restore();
   }
 
+  /** กล้องมองเหนือขอบบนแมป (worldMinY<0) + ใช้รูปแผนที่ — ยัด loop ท้องฟ้าเติมครึ่งบนจอ */
+  function drawStackTowerLoopSkyFillAboveMap(ctx, worldMinY, zDraw, cw, ch) {
+    if (!isStackTowerMissionUiMapPlay() || worldMinY >= 0) return;
+    const loop = stackTowerScrollBgLoopImg;
+    if (!loop || !loop.complete || !loop.naturalWidth) return;
+    const cwR = Math.max(1, Math.round(cw));
+    const chR = Math.max(1, Math.round(ch));
+    const scaleL = cwR / loop.naturalWidth;
+    const drawHLoop = Math.max(1, Math.round(loop.naturalHeight * scaleL));
+    const skyScreenH = Math.min(chR, Math.ceil(-worldMinY * zDraw) + 4);
+    const scroll = (stackTowerScrollBgPx + getStackTowerBgScrollHeightBoostPx()) % drawHLoop;
+    let y = -scroll;
+    ctx.save();
+    ctx.imageSmoothingEnabled = false;
+    while (y < skyScreenH + drawHLoop) {
+      if (y + drawHLoop > 0) {
+        ctx.drawImage(loop, 0, 0, loop.naturalWidth, loop.naturalHeight, 0, y, cwR, drawHLoop);
+      }
+      y += drawHLoop;
+    }
+    ctx.restore();
+  }
+
   function tickStackTowerScrollBg(dtSec) {
-    if (!stackTowerScrollBgDrawActive()) return;
+    if (!stackTowerScrollBgMapEligible() || stackTowerScrollBgOff) return;
+    if (!stackTowerScrollBgImagesReady()) return;
     stackTowerScrollBgPx += (stackTowerScrollBgSpeedPxPerSec || 40) * dtSec;
   }
 
@@ -6890,7 +6917,9 @@
       : 0.16 * offN * (hit.perfect ? 0.1 : 1);
     const isHumanPreview = !!(previewActor && previewActor.human);
     const botIdPreview = previewActor && previewActor.botId ? previewActor.botId : null;
-    const cableTopYRel = Math.max(0, swingAttachY - tileSize * 6);
+    const cableTopYRel = isStackTowerMissionUiMapPlay()
+      ? (swingAttachY - tileSize * 6)
+      : Math.max(0, swingAttachY - tileSize * 6);
     const craneXRel = m.craneWorldX != null ? m.craneWorldX : m.topCenterX * tileSize;
     const releaseRopeAng = Math.atan2(swingAttachY - cableTopYRel, swingXW - craneXRel);
     stackFall = {
@@ -7076,7 +7105,9 @@
     const floorY = m.floorWorldY;
     const swingLiftDraw = getStackTowerSwingLiftWorldPx(m.layers.length, layerWorldH);
     const swingDrawY = m.swingWorldY - swingLiftDraw;
-    const guideTopY = Math.max(0, swingDrawY - tileSize * 6.5);
+    const guideTopY = isStackTowerMissionUiMapPlay()
+      ? (swingDrawY - tileSize * 6.5)
+      : Math.max(0, swingDrawY - tileSize * 6.5);
     const [gtx, gty] = worldToScreen(m.topCenterX * tileSize, guideTopY);
     const [gbx, gby] = worldToScreen(m.topCenterX * tileSize, floorY);
     ctx.strokeStyle = 'rgba(255,255,255,0.22)';
@@ -7132,7 +7163,9 @@
     } else {
       const twWorld = m.widthTiles * tileSize;
       const drawStripPx = stripH * zoom;
-      const cableTopY = Math.max(0, swingDrawY - tileSize * 6);
+      const cableTopY = isStackTowerMissionUiMapPlay()
+        ? (swingDrawY - tileSize * 6)
+        : Math.max(0, swingDrawY - tileSize * 6);
       const craneX = m.craneWorldX != null ? m.craneWorldX : m.topCenterX * tileSize;
       let blockLeftWorld;
       let blockTopWorld;
@@ -12937,6 +12970,7 @@
       /* กล้องเห็นพื้นที่นอก [0,map] ได้ — ห้ามสุ่มต้นทาง drawImage เกินขอบภาพ (จะเกิดซ้ำ/เส้นตัด/ซ้อนกันที่ขอบจอ) */
       ctx.fillStyle = (isSpaceShooter() || isBalloonBoss()) ? '#0a0e22' : '#1a1b26';
       ctx.fillRect(0, 0, canvas.width, canvas.height);
+      drawStackTowerLoopSkyFillAboveMap(ctx, worldMinY, zDraw, canvas.width, canvas.height);
       const natW = mapBackgroundImg.naturalWidth;
       const natH = mapBackgroundImg.naturalHeight;
       const bgMinX = Math.max(0, worldMinX);
diff --git a/www/html/Game/public/play.html b/www/html/Game/public/play.html
index af9f0b4..b72e4f8 100644
--- a/www/html/Game/public/play.html
+++ b/www/html/Game/public/play.html
@@ -2009,7 +2009,7 @@
   </div>
   <script src="/Game/socket.io/socket.io.js"></script>
   <script src="js/version.js?v=0.0184"></script>
-  <script src="js/play.js?v=0.271"></script>
+  <script src="js/play.js?v=0.272"></script>
   <div class="version-tag">v —</div>
 </body>
 </html>