diff --git a/src/games/pipepuzzle/PipePuzzleGame.js b/src/games/pipepuzzle/PipePuzzleGame.js
index 2613d19..ce22682 100644
--- a/src/games/pipepuzzle/PipePuzzleGame.js
+++ b/src/games/pipepuzzle/PipePuzzleGame.js
@@ -357,18 +357,31 @@ export default class PipePuzzleGame extends Phaser.Scene {
   }
 
   // ── Interaction ────────────────────────────────────────────────────────────
+  // Kill only the tweens on `target` that animate the given property names.
+  // Phaser 3.90's `killTweensOf(target, 'prop')` no longer supports the
+  // prop filter — the argument is silently ignored and EVERY tween on the
+  // target is destroyed (which is what let a pointerout kill a tile's
+  // in-flight rotation tween, freezing it mid-spin).
+  _killTweensOf(target, ...props) {
+    const want = new Set(props);
+    for (const t of this.tweens.getTweensOf(target)) {
+      if (t.data && t.data.some((d) => want.has(d.key))) t.destroy();
+    }
+  }
+
   _setHover(i, on) {
     if (this._screen !== 'play' || this._won) return;
     const base = this._cellBaseScale;
     if (on) {
       this._hover = i;
       this._cells[i].setInteractive({ useHandCursor: true });
+      this._killTweensOf(this._cells[i], 'scaleX', 'scaleY');
       this.tweens.add({ targets: this._cells[i], scaleX: base * 1.06, scaleY: base * 1.06, duration: 120, ease: 'Quad.easeOut' });
     } else {
       if (this._hover === i) this._hover = null;
       // Always restore this tile's scale — pointerout can land before the
       // neighbor's pointerover, so don't rely on _hover being current.
-      this.tweens.killTweensOf(this._cells[i], 'scaleX');
+      this._killTweensOf(this._cells[i], 'scaleX', 'scaleY');
       this.tweens.add({ targets: this._cells[i], scaleX: base, scaleY: base, duration: 140, ease: 'Quad.easeOut' });
     }
   }
@@ -384,7 +397,7 @@ export default class PipePuzzleGame extends Phaser.Scene {
 
     const img = this._cells[i];
     img._targetAngle += 90;
-    this.tweens.killTweensOf(img, 'angle'); // only the spin — leave hover-scale tweens alone
+    this._killTweensOf(img, 'angle'); // only the spin — leave hover-scale tweens alone
     this.tweens.add({
       targets: img,
       angle: img._targetAngle,