diff --git a/main.js b/main.js
index bd35e3e..71b717b 100644
--- a/main.js
+++ b/main.js
@@ -4,6 +4,7 @@
     Render,
     Runner,
     World,
+    Body,
     Bodies,
     Constraint,
     Events,
@@ -50,16 +51,27 @@
         Bodies.rectangle(w / 2, h + 40, w, 80, {
           isStatic: true,
           restitution: 0.8,
+          render: { fillStyle: "#0ea5e9", strokeStyle: "#0ea5e9" },
+        }),
+        Bodies.rectangle(-40, h / 2, 80, h * 2, {
+          isStatic: true,
+          render: { fillStyle: "#f97316", strokeStyle: "#f97316" },
+        }),
+        Bodies.rectangle(w + 40, h / 2, 80, h * 2, {
+          isStatic: true,
+          render: { fillStyle: "#f97316", strokeStyle: "#f97316" },
         }),
-        Bodies.rectangle(-40, h / 2, 80, h * 2, { isStatic: true }),
-        Bodies.rectangle(w + 40, h / 2, 80, h * 2, { isStatic: true }),
         Bodies.rectangle(w * 0.25, h * 0.55, 160, 20, {
           isStatic: true,
           angle: -0.3,
+          render: { fillStyle: "#22c55e", strokeStyle: "#22c55e" },
+          plugin: { rotSpeed: 0.1 },
         }),
         Bodies.rectangle(w * 0.7, h * 0.4, 220, 24, {
           isStatic: true,
           angle: 0.26,
+          render: { fillStyle: "#a855f7", strokeStyle: "#a855f7" },
+          plugin: { rotSpeed: -0.08 },
         }),
       ],
     },
@@ -192,11 +204,13 @@
 
   // Static boundaries and scene-specific obstacles.
   let boundaries = [];
+  let rotators = [];
   let currentScene = scenes[0];
 
   const rebuildSceneBodies = () => {
     boundaries.forEach((b) => World.remove(world, b));
     boundaries = currentScene.createBodies(width, height);
+    rotators = boundaries.filter((b) => b.plugin && b.plugin.rotSpeed);
     World.add(world, boundaries);
   };
 
@@ -616,6 +630,14 @@
         c.stiffness = c.plugin.baseStiffness ?? c.stiffness;
       }
     });
+    // Rotate any scene rotators slowly.
+    const dt = (engine.timing && engine.timing.delta) || 16;
+    rotators.forEach((b) => {
+      const speed = b.plugin.rotSpeed || 0;
+      if (speed !== 0) {
+        Body.rotate(b, speed * (dt / 1000));
+      }
+    });
   });
 
   Events.on(render, "afterRender", () => {