diff --git a/src/App.jsx b/src/App.jsx
index 5434e37..264b37a 100644
--- a/src/App.jsx
+++ b/src/App.jsx
@@ -5,6 +5,7 @@ import AtmosphereScene from './AtmosphereScene';
 import AvatarScene from './AvatarScene';
 import { LOCATIONS, teleportTo } from './worldState';
 import { adminMode, onAdminChange } from './controls/KeyInput';
+import ControlPanel from './ui/ControlPanel';
 
 const ACTION_SEQUENCE = ['attack', 'skill', 'jump', 'fly_dodge', 'damage'];
 const TELEPORT_ANIM = 'fly_dodge';
@@ -16,6 +17,9 @@ export default function App() {
   const [animState, setAnimState] = useState({ name: 'fly_idle', count: 0 });
   const [isAdmin, setIsAdmin] = useState(false);
   const [view, setView] = useState('avatar'); // 'avatar' | 'nasa'
+  const [timeScale, setTimeScale] = useState(100);
+  const [camSpeed, setCamSpeed] = useState(0.05);
+  const [vrmModel, setVrmModel] = useState('ai.vrm');
   const actionIndexRef = useRef(0);
   const teleportIndexRef = useRef(0);
   const countRef = useRef(0);
@@ -50,6 +54,7 @@ export default function App() {
     } else if (e.code === 'KeyS') {
       e.preventDefault();
       playAnim('skill');
+      setVrmModel(prev => prev === 'ai.vrm' ? 'ai_mode.vrm' : 'ai.vrm');
     }
   }, [playAnim, view]);
 
@@ -90,6 +95,7 @@ export default function App() {
 
   const doSkill = useCallback(() => {
     playAnim('skill');
+    setVrmModel(prev => prev === 'ai.vrm' ? 'ai_mode.vrm' : 'ai.vrm');
   }, [playAnim]);
 
   const appStartRef = useRef(Date.now());
@@ -154,17 +160,28 @@ export default function App() {
       {/* Atmosphere background */}
       <div style={{ ...layerStyle, zIndex: 0, opacity: isNasa ? 0 : 1, transition: 'opacity 1.5s ease' }}>
         <Canvas gl={{ alpha: true, antialias: true }}>
-          <AtmosphereScene />
+          <AtmosphereScene timeScale={timeScale} />
         </Canvas>
       </div>
 
       {/* Avatar layer */}
       <div style={{ ...layerStyle, zIndex: 1, pointerEvents: 'none', opacity: isNasa ? 0 : 1, transition: 'opacity 1.5s ease' }}>
         <div style={{ width: '100%', height: '100%', pointerEvents: isNasa ? 'none' : 'auto' }}>
-          <AvatarScene selectedAnimation={animState} onZoomOut={handleZoomOut} />
+          <AvatarScene selectedAnimation={animState} onZoomOut={handleZoomOut} camSpeed={camSpeed} vrmModel={vrmModel} />
         </div>
       </div>
 
+      {/* Control panel */}
+      {!isNasa && (
+        <ControlPanel
+          timeScale={timeScale}
+          onTimeScaleChange={setTimeScale}
+          camSpeed={camSpeed}
+          onCamSpeedChange={setCamSpeed}
+          onSkill={doSkill}
+        />
+      )}
+
       {/* Admin controls */}
       {isAdmin && !isNasa && (
         <div style={{ position: 'absolute', top: 16, left: 16, zIndex: 2, display: 'flex', gap: 8, alignItems: 'center' }}>
diff --git a/src/AtmosphereScene.jsx b/src/AtmosphereScene.jsx
index ab68529..86dbde7 100644
--- a/src/AtmosphereScene.jsx
+++ b/src/AtmosphereScene.jsx
@@ -69,11 +69,13 @@ function GoogleMaps3DTiles() {
   );
 }
 
-export default function AtmosphereScene() {
+export default function AtmosphereScene({ timeScale: timeScaleProp }) {
   const { gl } = useThree();
   const sunRef = useRef();
   const atmosphereRef = useRef();
   const dateRef = useRef(new Date(INITIAL_DATE));
+  const timeScaleRef = useRef(timeScaleProp ?? TIME_SCALE);
+  timeScaleRef.current = timeScaleProp ?? TIME_SCALE;
   const [weather, setWeather] = useState(WEATHER_PRESETS[1]);
 
   useEffect(() => {
@@ -93,7 +95,7 @@ export default function AtmosphereScene() {
 
   useFrame((_, delta) => {
     const currentDate = dateRef.current;
-    currentDate.setTime(currentDate.getTime() + delta * TIME_SCALE * 1000);
+    currentDate.setTime(currentDate.getTime() + delta * timeScaleRef.current * 1000);
 
     if (atmosphereRef.current) {
       atmosphereRef.current.updateByDate(currentDate);
diff --git a/src/AvatarScene.jsx b/src/AvatarScene.jsx
index ef1cec3..a6c738c 100644
--- a/src/AvatarScene.jsx
+++ b/src/AvatarScene.jsx
@@ -31,12 +31,13 @@ const CAM_APPROACH_SPEED = 0.08;     // 接近の補間速度
 
 // --- Components ---
 
-function RotatingStage({ children }) {
+function RotatingStage({ children, speed }) {
   const groupRef = useRef(null);
 
   useFrame(({ clock }) => {
     if (groupRef.current) {
-      const angle = clock.getElapsedTime() * STAGE_ROTATE_SPEED;
+      const s = speed != null ? speed : STAGE_ROTATE_SPEED;
+      const angle = clock.getElapsedTime() * s;
       groupRef.current.rotation.y = angle;
       worldState.stageRotationY = angle;
     }
@@ -111,7 +112,7 @@ function CameraDistanceMonitor({ onDistanceChange }) {
   return null;
 }
 
-export default function AvatarScene({ selectedAnimation: animState, onZoomOut }) {
+export default function AvatarScene({ selectedAnimation: animState, onZoomOut, camSpeed: camSpeedProp, vrmModel }) {
   const selectedAnimation = animState;
   const animName = animState?.name || animState;
   const [effect, setEffect] = useState(null);
@@ -141,8 +142,8 @@ export default function AvatarScene({ selectedAnimation: animState, onZoomOut })
       <ambientLight intensity={1.0} />
       <spotLight position={[0, 2, -2]} intensity={3} color="#ffdcb4" />
       <Suspense fallback={null}>
-        <RotatingStage>
-          <VrmCharacter selectedAnimation={selectedAnimation} />
+        <RotatingStage speed={camSpeedProp}>
+          <VrmCharacter key={vrmModel} selectedAnimation={selectedAnimation} vrmModel={vrmModel} />
           {effect && <EnergySphere type={effect.type} position={[0, 1.0, 0]} scale={6} />}
         </RotatingStage>
       </Suspense>
diff --git a/src/SkillEffects.jsx b/src/SkillEffects.jsx
index 1f0e151..78968fe 100644
--- a/src/SkillEffects.jsx
+++ b/src/SkillEffects.jsx
@@ -5,12 +5,12 @@ import * as THREE from 'three';
 const SPHERE_PRESETS = {
   sun: {
     layers: [
-      { radius: 0.3, segments: 64, size: 0.015, opacity: 0.8 },
-      { radius: 0.22, segments: 48, size: 0.02, opacity: 0.5 },
-      { radius: 0.38, segments: 40, size: 0.008, opacity: 0.3 },
+      { radius: 0.3, segments: 64, size: 0.015, opacity: 0.5 },
+      { radius: 0.22, segments: 48, size: 0.02, opacity: 0.3 },
+      { radius: 0.38, segments: 40, size: 0.008, opacity: 0.2 },
     ],
     lightColor: '#ffaa22',
-    lightIntensity: 3,
+    lightIntensity: 1.5,
     rotateSpeed: 1.5,
     pulseSpeed: 2.0,
     pulseRange: 0.25,
@@ -22,11 +22,11 @@ const SPHERE_PRESETS = {
   },
   moon: {
     layers: [
-      { radius: 0.2, segments: 48, size: 0.01, opacity: 0.6 },
-      { radius: 0.26, segments: 32, size: 0.006, opacity: 0.25 },
+      { radius: 0.2, segments: 48, size: 0.01, opacity: 0.4 },
+      { radius: 0.26, segments: 32, size: 0.006, opacity: 0.15 },
     ],
     lightColor: '#aaccff',
-    lightIntensity: 2,
+    lightIntensity: 1.0,
     rotateSpeed: 0.8,
     pulseSpeed: 1.0,
     pulseRange: 0.12,
@@ -140,7 +140,7 @@ function EnergySphere({ type = 'sun', position = [0, 1.5, 0], scale = 1 }) {
           />
         </group>
       ))}
-      <pointLight position={[0, 0, 0]} intensity={preset.lightIntensity} color={preset.lightColor} distance={5} />
+      <pointLight position={[0, 0, 0]} intensity={preset.lightIntensity} color={preset.lightColor} distance={3} />
     </group>
   );
 }
diff --git a/src/VrmCharacter.jsx b/src/VrmCharacter.jsx
index ed60e0d..2fae135 100644
--- a/src/VrmCharacter.jsx
+++ b/src/VrmCharacter.jsx
@@ -9,7 +9,6 @@ import * as THREE from 'three';
 import { keys, adminMode } from './controls/KeyInput';
 
 const BASE_URL = import.meta.env.BASE_URL;
-const VRM_URL = `${BASE_URL}model/ai.vrm`;
 
 export const VRMA_FILES = [
   { name: 'idle',       label: '待機',     file: 'idle.vrma',       loop: true },
@@ -54,14 +53,15 @@ function trimClip(clip, duration, addLoopPose) {
   return clip;
 }
 
-export default function VrmCharacter({ selectedAnimation: animState }) {
+export default function VrmCharacter({ selectedAnimation: animState, vrmModel = 'ai.vrm' }) {
   const selectedAnimation = animState?.name || animState;
   const mixerRef = useRef(null);
   const vrmRef = useRef(null);
   const actionsRef = useRef({});
   const currentActionRef = useRef(null);
 
-  const gltf = useLoader(GLTFLoader, VRM_URL, (loader) => {
+  const vrmUrl = `${BASE_URL}model/${vrmModel}`;
+  const gltf = useLoader(GLTFLoader, vrmUrl, (loader) => {
     loader.register((parser) => new VRMLoaderPlugin(parser));
   });
 
diff --git a/src/ui/ControlPanel.jsx b/src/ui/ControlPanel.jsx
new file mode 100644
index 0000000..db47537
--- /dev/null
+++ b/src/ui/ControlPanel.jsx
@@ -0,0 +1,85 @@
+import React from 'react';
+
+const containerStyle = {
+  position: 'absolute',
+  top: 16,
+  right: 16,
+  zIndex: 2,
+  display: 'flex',
+  flexDirection: 'column',
+  gap: 8,
+  padding: '10px 12px',
+  background: 'rgba(0,0,0,0.3)',
+  borderRadius: '8px',
+  backdropFilter: 'blur(4px)',
+  minWidth: 140,
+};
+
+const labelStyle = {
+  color: 'rgba(255,255,255,0.7)',
+  fontSize: '11px',
+  display: 'flex',
+  justifyContent: 'space-between',
+  alignItems: 'center',
+};
+
+const sliderStyle = {
+  width: '100%',
+  height: 4,
+  appearance: 'none',
+  background: 'rgba(255,255,255,0.2)',
+  borderRadius: 2,
+  outline: 'none',
+  cursor: 'pointer',
+};
+
+const btnStyle = {
+  padding: '4px 10px',
+  background: 'rgba(255,255,255,0.1)',
+  color: 'rgba(255,255,255,0.7)',
+  border: '1px solid rgba(255,255,255,0.2)',
+  borderRadius: '4px',
+  cursor: 'pointer',
+  fontSize: '11px',
+  width: '100%',
+};
+
+export default function ControlPanel({ timeScale, onTimeScaleChange, camSpeed, onCamSpeedChange, onSkill }) {
+  return (
+    <div style={containerStyle}>
+      <div>
+        <div style={labelStyle}>
+          <span>Time</span>
+          <span>{timeScale}x</span>
+        </div>
+        <input
+          type="range"
+          min={0}
+          max={5000}
+          step={50}
+          value={timeScale}
+          onChange={(e) => onTimeScaleChange(Number(e.target.value))}
+          style={sliderStyle}
+        />
+      </div>
+      <div>
+        <div style={labelStyle}>
+          <span>Camera</span>
+          <span>{camSpeed.toFixed(2)}</span>
+        </div>
+        <input
+          type="range"
+          min={1}
+          max={20}
+          step={1}
+          value={camSpeed * 100}
+          onChange={(e) => onCamSpeedChange(Number(e.target.value) / 100)}
+          style={sliderStyle}
+        />
+      </div>
+      <button style={btnStyle} onClick={() => onSkill?.()}>
+        Skill
+      </button>
+    </div>
+  );
+}