diff --git a/modules/freeworld.client/src/main/java/freeworld/client/render/GameRenderer.java b/modules/freeworld.client/src/main/java/freeworld/client/render/GameRenderer.java
index d494cf1..ad158a4 100644
--- a/modules/freeworld.client/src/main/java/freeworld/client/render/GameRenderer.java
+++ b/modules/freeworld.client/src/main/java/freeworld/client/render/GameRenderer.java
@@ -207,7 +207,11 @@ private void renderWorldEntities(GLStateMgr gl, double partialTick) {
             entity.interpolatePosition(partialTick);
             var factory = EntityRenderers.registry().getById(Registries.ENTITY_TYPE.getId(entity.entityType()));
             if (factory != null) {
-                factory.create(client).render(gl, partialTick, Matrix4f.translation(entity.interpolatedPosition().toVector3f()), entity);
+                factory.create(client).render(gl,
+                    partialTick,
+                    Matrix4f.translation(entity.interpolatedPosition().toVector3f())
+                        .rotateY((float) Math.toRadians(entity.rotation().y())),
+                    entity);
             }
         }
     }
diff --git a/modules/freeworld.client/src/main/java/freeworld/client/render/world/entity/CubeEntityRenderer.java b/modules/freeworld.client/src/main/java/freeworld/client/render/world/entity/CubeEntityRenderer.java
index b105c13..6793c42 100644
--- a/modules/freeworld.client/src/main/java/freeworld/client/render/world/entity/CubeEntityRenderer.java
+++ b/modules/freeworld.client/src/main/java/freeworld/client/render/world/entity/CubeEntityRenderer.java
@@ -32,13 +32,54 @@ public void render(GLStateMgr gl, double partialTick, Matrix4f positionMatrix, C
         RenderSystem.useProgram(client.gameRenderer().positionColorProgram());
         Tessellator t = Tessellator.getInstance();
         t.begin(GLDrawMode.TRIANGLES);
+        float x0 = -0.5f;
+        float y0 = 0.0f;
+        float z0 = -0.5f;
+        float x1 = 0.5f;
+        float y1 = 1.0f;
+        float z1 = 0.5f;
+
+        // -x
+        t.indices(0, 1, 2, 2, 3, 0);
+        t.position(positionMatrix, x0, y1, z0).color(0, 255, 255).texCoord(0, 0).emit();
+        t.position(positionMatrix, x0, y0, z0).color(0, 255, 255).texCoord(0, 0).emit();
+        t.position(positionMatrix, x0, y0, z1).color(0, 255, 255).texCoord(0, 0).emit();
+        t.position(positionMatrix, x0, y1, z1).color(0, 255, 255).texCoord(0, 0).emit();
+
+        // +x
+        t.indices(0, 1, 2, 2, 3, 0);
+        t.position(positionMatrix, x1, y1, z1).color(255, 0, 0).texCoord(0, 0).emit();
+        t.position(positionMatrix, x1, y0, z1).color(255, 0, 0).texCoord(0, 0).emit();
+        t.position(positionMatrix, x1, y0, z0).color(255, 0, 0).texCoord(0, 0).emit();
+        t.position(positionMatrix, x1, y1, z0).color(255, 0, 0).texCoord(0, 0).emit();
+
+        // -y
+        t.indices(0, 1, 2, 2, 3, 0);
+        t.position(positionMatrix, x0, y0, z1).color(255, 0, 220).texCoord(0, 0).emit();
+        t.position(positionMatrix, x0, y0, z0).color(255, 0, 220).texCoord(0, 0).emit();
+        t.position(positionMatrix, x1, y0, z0).color(255, 0, 220).texCoord(0, 0).emit();
+        t.position(positionMatrix, x1, y0, z1).color(255, 0, 220).texCoord(0, 0).emit();
+
+        // +y
+        t.indices(0, 1, 2, 2, 3, 0);
+        t.position(positionMatrix, x0, y1, z0).color(0, 255, 33).texCoord(0, 0).emit();
+        t.position(positionMatrix, x0, y1, z1).color(0, 255, 33).texCoord(0, 0).emit();
+        t.position(positionMatrix, x1, y1, z1).color(0, 255, 33).texCoord(0, 0).emit();
+        t.position(positionMatrix, x1, y1, z0).color(0, 255, 33).texCoord(0, 0).emit();
+
+        // -z
+        t.indices(0, 1, 2, 2, 3, 0);
+        t.position(positionMatrix, x1, y1, z0).color(255, 216, 0).texCoord(0, 0).emit();
+        t.position(positionMatrix, x1, y0, z0).color(255, 216, 0).texCoord(0, 0).emit();
+        t.position(positionMatrix, x0, y0, z0).color(255, 216, 0).texCoord(0, 0).emit();
+        t.position(positionMatrix, x0, y1, z0).color(255, 216, 0).texCoord(0, 0).emit();
 
         // +z
         t.indices(0, 1, 2, 2, 3, 0);
-        t.position(positionMatrix, 0.0f, 1.0f, 1.0f).color(0, 148, 255).texCoord(0, 0).emit();
-        t.position(positionMatrix, 0.0f, 0.0f, 1.0f).color(0, 148, 255).texCoord(0, 0).emit();
-        t.position(positionMatrix, 1.0f, 0.0f, 1.0f).color(0, 148, 255).texCoord(0, 0).emit();
-        t.position(positionMatrix, 1.0f, 1.0f, 1.0f).color(0, 148, 255).texCoord(0, 0).emit();
+        t.position(positionMatrix, x0, y1, z1).color(0, 148, 255).texCoord(0, 0).emit();
+        t.position(positionMatrix, x0, y0, z1).color(0, 148, 255).texCoord(0, 0).emit();
+        t.position(positionMatrix, x1, y0, z1).color(0, 148, 255).texCoord(0, 0).emit();
+        t.position(positionMatrix, x1, y1, z1).color(0, 148, 255).texCoord(0, 0).emit();
 
         t.end(gl);
     }
diff --git a/modules/freeworld.client/src/main/java/freeworld/client/render/world/entity/EntityRenderers.java b/modules/freeworld.client/src/main/java/freeworld/client/render/world/entity/EntityRenderers.java
index 368eb79..88f0529 100644
--- a/modules/freeworld.client/src/main/java/freeworld/client/render/world/entity/EntityRenderers.java
+++ b/modules/freeworld.client/src/main/java/freeworld/client/render/world/entity/EntityRenderers.java
@@ -32,6 +32,7 @@ public static void bootstrap() {
         register(EntityTypes.CUBE, CubeEntityRenderer::new);
     }
 
+    @SuppressWarnings("unchecked")
     public static <T extends Entity> void register(EntityType<T> entityType, EntityRenderer.Factory<T> renderer) {
         Registry.register(REGISTRY, Registries.ENTITY_TYPE.getId(entityType), (EntityRenderer.Factory<Entity>) renderer);
     }
diff --git a/modules/freeworld.core/src/main/java/freeworld/world/World.java b/modules/freeworld.core/src/main/java/freeworld/world/World.java
index 59b5fa9..8b52938 100644
--- a/modules/freeworld.core/src/main/java/freeworld/world/World.java
+++ b/modules/freeworld.core/src/main/java/freeworld/world/World.java
@@ -10,13 +10,16 @@
 
 package freeworld.world;
 
+import freeworld.math.Vector2d;
 import freeworld.math.Vector3d;
 import freeworld.math.Vector3i;
 import freeworld.util.Int3Consumer;
 import freeworld.util.math.ChunkPos;
+import freeworld.util.math.MathUtil;
 import freeworld.world.block.BlockType;
 import freeworld.world.block.BlockTypes;
 import freeworld.world.chunk.Chunk;
+import freeworld.world.entity.CubeEntity;
 import freeworld.world.entity.Entity;
 import freeworld.world.entity.EntityType;
 import freeworld.world.entity.PlayerEntity;
@@ -69,6 +72,17 @@ public void addListener(WorldListener listener) {
     public void tick() {
         motionSystem.process(this, players);
         motionSystem.process(this, entities);
+        // TODO: test
+        for (Entity entity : entities) {
+            if (entity instanceof CubeEntity cubeEntity) {
+                cubeEntity.rotation = new Vector2d(0.0, cubeEntity.rotation().y() + Math.random() * 2 - 1);
+                cubeEntity.acceleration = MathUtil.moveRelative(
+                    0.0, cubeEntity.onGround() && Math.random() > 0.5 ? 0.5 : 0.0, 1.0,
+                    cubeEntity.rotation().y(),
+                    cubeEntity.onGround() ? 0.1 : 0.02
+                );
+            }
+        }
     }
 
     public <T extends Entity> T createEntity(EntityType<T> type, Vector3d position) {
diff --git a/modules/freeworld.math/src/main/java/freeworld/math/Matrix4f.java b/modules/freeworld.math/src/main/java/freeworld/math/Matrix4f.java
index bbb9cce..abb388a 100644
--- a/modules/freeworld.math/src/main/java/freeworld/math/Matrix4f.java
+++ b/modules/freeworld.math/src/main/java/freeworld/math/Matrix4f.java
@@ -285,6 +285,10 @@ public Matrix4f translate(float x, float y, float z) {
         return translateGeneric(x, y, z);
     }
 
+    public Matrix4f translate(Vector3f v) {
+        return translate(v.x(), v.y(), v.z());
+    }
+
     private Matrix4f translateGeneric(float x, float y, float z) {
         return new Matrix4f(
             properties & ~(PROPERTY_PERSPECTIVE | PROPERTY_IDENTITY),