diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index be74efb..2dcd5ed 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -4,6 +4,7 @@ on:
   push:
     branches:
       - main
+      - dev
   workflow_dispatch:
 
 permissions:
@@ -19,33 +20,60 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout
+      - name: Checkout current branch
         uses: actions/checkout@v4
+        with:
+          path: current
+
+      - name: Checkout main branch
+        uses: actions/checkout@v4
+        with:
+          ref: main
+          path: main-branch
+
+      - name: Checkout dev branch
+        uses: actions/checkout@v4
+        with:
+          ref: dev
+          path: dev-branch
 
       - name: Setup Node
         uses: actions/setup-node@v4
         with:
           node-version: '20'
           cache: 'npm'
-          cache-dependency-path: monument-valley-demo/package-lock.json
+          cache-dependency-path: main-branch/monument-valley-demo/package-lock.json
 
-      - name: Install dependencies
+      - name: Build main branch
         run: |
-          cd monument-valley-demo
+          cd main-branch/monument-valley-demo
           npm ci
+          npm run build
 
-      - name: Build
+      - name: Build dev branch
         run: |
-          cd monument-valley-demo
+          cd dev-branch/monument-valley-demo
+          npm ci
+          # Update base path for dev subdirectory
+          sed -i "s|base: '/monument/'|base: '/monument/dev/'|g" vite.config.ts
           npm run build
 
+      - name: Prepare combined deployment
+        run: |
+          mkdir -p deployment
+          # Copy main build to root
+          cp -r main-branch/monument-valley-demo/dist/* deployment/
+          # Copy dev build to /dev subdirectory
+          mkdir -p deployment/dev
+          cp -r dev-branch/monument-valley-demo/dist/* deployment/dev/
+
       - name: Setup Pages
         uses: actions/configure-pages@v4
 
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v3
         with:
-          path: monument-valley-demo/dist
+          path: deployment
 
   deploy:
     environment:
diff --git a/monument-valley-demo/components/Scene/BuildingBlocks.tsx b/monument-valley-demo/components/Scene/BuildingBlocks.tsx
index d768bb6..d5991ca 100644
--- a/monument-valley-demo/components/Scene/BuildingBlocks.tsx
+++ b/monument-valley-demo/components/Scene/BuildingBlocks.tsx
@@ -363,7 +363,7 @@ export const WaterfallBlock: React.FC<BlockProps & { height?: number }> = ({
     }, [waterTexture, height]);
 
     useFrame((state, delta) => {
-        textureInstance.offset.y -= 1.5 * delta;
+        textureInstance.offset.y += 1.5 * delta;
     });
 
     return (
diff --git a/monument-valley-demo/components/Scene/LevelOne.tsx b/monument-valley-demo/components/Scene/LevelOne.tsx
index 0f42dd8..e953970 100644
--- a/monument-valley-demo/components/Scene/LevelOne.tsx
+++ b/monument-valley-demo/components/Scene/LevelOne.tsx
@@ -340,9 +340,8 @@ export const LevelOne: React.FC = () => {
         <WaterfallBlock height={14} />
       </MovableWrapper>
 
-      {/* Beam B: The Short Corner (X Axis) -> Flows to Negative X */}
-      {/* Previous was [1, 0]. Reversed to [-1, 0]. */}
-      <MovableWrapper 
+      {/* Beam B: The Short Corner (X Axis) -> Flows to Positive X */}
+      <MovableWrapper
         id="Beam-B"
         initialPos={[7.90, 5.50, 5.44]}
         isSelected={selectedIds.has('Beam-B')}
@@ -351,11 +350,11 @@ export const LevelOne: React.FC = () => {
       >
           <Path
             start={[0, 0, 0]}
-            length={16} 
+            length={16}
             axis="x"
-            color={PALETTE.brickDark} 
+            color={PALETTE.brickDark}
             type="water"
-            flowDirection={[-1, 0]} 
+            flowDirection={[1, 0]} 
             customBlocks={{
                 0: { walls: [true, false], endWalls: [true, false] }, 
                 15: { endWalls: [false, true] }