diff --git a/src/components/three/XRHudInWorld.tsx b/src/components/three/XRHudInWorld.tsx
index a644c99..d4d7276 100644
--- a/src/components/three/XRHudInWorld.tsx
+++ b/src/components/three/XRHudInWorld.tsx
@@ -156,9 +156,22 @@ export function XRHudInWorld(props: XRHudInWorldProps) {
     }
   });
 
+  const showGrid = useModelStore((s) => s.showGrid);
+  const setShowGrid = useModelStore((s) => s.setShowGrid);
+
   return (
     <>
       <WristToggle ref={wristRef} open={open} onToggle={() => setOpen((v) => !v)} />
+      {/* Head-locked fallback: always-visible quick controls in lower-left of FOV */}
+      <group ref={headLockRef} renderOrder={999}>
+        <XR3DButton position={[0, 0.018, 0]} size={[0.07, 0.022]}
+          label={open ? '✕ Menu' : '☰ Menu'} active={open}
+          onClick={() => { setOpen((v) => !v); reanchorRequested.current = true; }}
+          fontSize={0.0085} />
+        <XR3DButton position={[0, -0.008, 0]} size={[0.07, 0.022]}
+          label={showGrid ? 'Grid ON' : 'Grid OFF'} active={showGrid}
+          onClick={() => setShowGrid(!showGrid)} fontSize={0.0085} />
+      </group>
       {open && (
         <group ref={panelRef}>
           <FloatingPanel