diff --git a/js/game.js b/js/game.js
index b73af09..e2a4716 100644
--- a/js/game.js
+++ b/js/game.js
@@ -92,8 +92,11 @@ export class Tile {
             other.type.name !== 'ghost')
             return true;
 
-        if (this.type.blocks)
-            return this.type.blocks(this, level, other, direction);
+        if (this.type.blocks && this.type.blocks(this, level, other, direction))
+            return true;
+        
+        if (other.type.blocked_by && other.type.blocked_by(other, level, this))
+            return true;
 
         return false;
     }
diff --git a/js/tiletypes.js b/js/tiletypes.js
index bcdc279..d2c6d61 100644
--- a/js/tiletypes.js
+++ b/js/tiletypes.js
@@ -1350,6 +1350,9 @@ const TILE_TYPES = {
         on_finishing_move(me, level) {
             this.try_pickup_item(me, level);
         },
+        blocked_by(me, level, other) {
+            return other.cell.get_item() !== null && me.encased_item !== null;
+        },
         on_death(me, level) {
             //needs to be called by transmute_tile to ttl and by lit_dynamite before remove_tile
             if (me.encased_item !== null) {