diff --git a/micro/creature_creature_behavior/Creature.pde b/micro/creature_creature_behavior/Creature.pde
new file mode 100644
index 0000000..65f8302
--- /dev/null
+++ b/micro/creature_creature_behavior/Creature.pde
@@ -0,0 +1,36 @@
+import teilchen.BehaviorParticle;
+import mathematik.Vector3f;
+
+class Creature extends BehaviorParticle {
+  
+  float   _scale;
+  
+  public Creature(int x, int y, int r) {
+    super();
+    position().set(x, y);
+    maximumInnerForce(100);
+    radius(r);
+    _scale = 1.0;
+  }
+  
+  public void display() {
+    pushMatrix();
+    translate(position().x, position().y);
+    rotate(getRotation()); 
+    scale(_scale);
+    draw_shape();
+    popMatrix();    
+  }
+  
+  private float getRotation() {
+    if(velocity().isNaN() || velocity().magnitude() == 0) return 0;
+    Vector3f v = new Vector3f(-1, 0, 0);    
+    return velocity().angle(v);
+  }
+  
+  public void draw_shape() {}
+  
+  public boolean inside(int mx, int my){return false;}
+  
+};
+
diff --git a/micro/creature_creature_behavior/CreatureBehavior.pde b/micro/creature_creature_behavior/CreatureBehavior.pde
new file mode 100644
index 0000000..5340a7f
--- /dev/null
+++ b/micro/creature_creature_behavior/CreatureBehavior.pde
@@ -0,0 +1,11 @@
+interface CreatureBehavior {
+  
+  public void event(int x, int y);
+ 
+  public void event(int c);  
+  
+  public void update(float dt);
+  
+  public void add(Creature c);
+  
+}
diff --git a/micro/creature_creature_behavior/creature_creature_behavior.pde b/micro/creature_creature_behavior/creature_creature_behavior.pde
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/micro/creature_creature_behavior/creature_creature_behavior.pde
@@ -0,0 +1 @@
+
diff --git a/micro/creature_creature_behavior/sketch.properties b/micro/creature_creature_behavior/sketch.properties
new file mode 100644
index 0000000..8630fa2
--- /dev/null
+++ b/micro/creature_creature_behavior/sketch.properties
@@ -0,0 +1,2 @@
+mode.id=processing.mode.java.JavaMode
+mode=Java