diff --git a/Makefile b/Makefile
index 60c2806..4155cf5 100644
--- a/Makefile
+++ b/Makefile
@@ -39,6 +39,11 @@ export CFLAGS   := $(LUAINCLUDE) $(SDLINCLUDE) $(ODEINCLUDE) -O2 -Wall
 export CXXFLAGS := $(CFLAGS)
 export LDFLAGS  := $(LUALIBS) $(ODELIBS) $(GLLIBS) $(WINDOWSLIBS) $(SDLLIBS)
 
+ifdef DEBUG
+	CFLAGS += -g
+	CXXFLAGS += -g
+endif
+
 all: $(TARGET)
 
 $(TARGET): $(OBJS) wfobj/WFObj.o OdeWorld/OdeWorld.o
diff --git a/anaglym.cc b/anaglym.cc
index ef47efc..67b297f 100644
--- a/anaglym.cc
+++ b/anaglym.cc
@@ -337,7 +337,7 @@ void Engine::doPhysics()
 Engine::Object::Object(const Engine::Object & orig)
 {
     m_display_list = orig.m_display_list;
-    m_ode_object = new OdeWorld::Object(*m_ode_object);
+    m_ode_object = new OdeWorld::Object(*orig.m_ode_object);
 }
 
 void Engine::Object::draw()
diff --git a/tests/ball.blend1 b/tests/ball.blend1
deleted file mode 100755
index d0d1d1f..0000000
Binary files a/tests/ball.blend1 and /dev/null differ
diff --git a/tests/ballstairs.lua b/tests/ballstairs.lua
index 00d156c..82d3cc3 100755
--- a/tests/ballstairs.lua
+++ b/tests/ballstairs.lua
@@ -13,10 +13,19 @@ function update()
     ag.startFrame()
     arena:draw()
     ball:draw()
+    ball2:draw()
+    ball3:draw()
+    logo:draw()
     ag.endFrame()
 end
 
 --ag.setCamera(8, -8, 15, -8, 8, 4, 0, 0, 1)
 arena = ag.loadStaticModel("boxarena")
 ball = ag.loadModel("ball")
-ball:setPosition(-7, 7.4, 12);
+ball:setPosition(-7, 7.4, 12)
+ball2 = ball:clone()
+ball2:setPosition(-7, 7.4, 14)
+ball3 = ball:clone()
+ball3:setPosition(-7, 7.4, 16)
+logo = ag.loadModel("dwlogo")
+logo:setPosition(0, 2, 11)
diff --git a/tests/dwlogo.phy b/tests/dwlogo.phy
new file mode 100644
index 0000000..f4dc36e
--- /dev/null
+++ b/tests/dwlogo.phy
@@ -0,0 +1 @@
+cube "Cube.006" 9.599437 5.977658 0.500298  0.022008 0.762484 0.250770  0.000000 0.000000 0.000000