diff --git a/simulators/ursina/entities/ursina_demo.py b/simulators/ursina/entities/ursina_demo.py
index dee54bc680658b692acb972068c9b7bc4d69d33e..ccc8cfbf49e4ac2e795e6ea347c9bceb22098989 100644
--- a/simulators/ursina/entities/ursina_demo.py
+++ b/simulators/ursina/entities/ursina_demo.py
@@ -8,22 +8,42 @@ texture = load_texture("../../../objs/textures/core_valaga_clas.jpg")
 camera_ship = Entity(model="../../../objs/models/core_valaga_clas.obj",
                      texture=texture, double_sided=True)
 
-shperes = []
+bullets = []
+targets = []
+target1 = Entity(
+    # model="sphere",
+    model="../../../objs/models/drops.obj",
+    texture=load_texture("../../../objs/textures/rock_snow.jpg"),
+    collider='box',
+    position=Vec3(0, 0, 26000), scale=900)
 
+targets.append(target1)
 
-def create_sphere():
-    shpere_l = Entity(
+target2 = Entity(
+    # model="sphere",
+    model="../../../objs/models/drops.obj",
+    texture=load_texture("../../../objs/textures/rock_snow.jpg"),
+    collider='box',
+    position=Vec3(-8000, 0, 26000), scale=900)
+
+targets.append(target2)
+
+
+def create_bullets():
+    bullet_l = Entity(
         # model="sphere",
-                    model="../../../objs/models/drops.obj",
-                     texture=load_texture("../../../objs/textures/rock_snow.jpg"),
-        position=camera_ship.position+Vec3(-260,0,0), scale=500)
-    shperes.append(shpere_l)
-    shpere_r = Entity(
+        model="../../../objs/models/drops.obj",
+        texture=load_texture("../../../objs/textures/rock_snow.jpg"),
+        collider='box',
+        position=camera_ship.position + Vec3(-260, 0, 0), scale=500)
+    bullets.append(bullet_l)
+    bullet_r = Entity(
         # model="sphere",
         model="../../../objs/models/drops.obj",
         texture=load_texture("../../../objs/textures/football.jpg"),
-        position=camera_ship.position+Vec3(260,0,0), scale=500)
-    shperes.append(shpere_r)
+        collider='box',
+        position=camera_ship.position + Vec3(260, 0, 0), scale=500)
+    bullets.append(bullet_r)
 
 
 # camera.parent = camera_ship.planet
@@ -42,18 +62,44 @@ camera.rotation_x = 10
 # application.time_scale = 1
 
 def update():
-    camera_ship.position += Vec3(0, 0, 10)
-    camera_ship.rotation_y += 0.01
+    camera_ship.position += camera_ship.forward * 2
+    # camera_ship.rotation_y += 0.01
     # camera.position = Vec3(0, 1000, -1000)
-    for shpere in shperes:
-        shpere.rotation_y = camera_ship.rotation_y
-        shpere.position += shpere.forward * 10
+    destroy_bullets = []
+    destroy_targets = []
+    for bullet in bullets:
+        bullet.rotation_x = camera_ship.rotation_x
+        bullet.rotation_y = camera_ship.rotation_y
+        bullet.rotation_z = camera_ship.rotation_z
+        bullet.position += bullet.forward * 3
+        for target in targets:
+            if bullet.intersects(target):
+                if target not in destroy_targets and bullet not in destroy_bullets:
+                    destroy_bullets.append(bullet)
+                    destroy_targets.append(target)
+
+    for i in range(len(destroy_targets) - 1, -1, -1):
+        targets.remove(destroy_targets[i])
+        destroy(destroy_targets[i])
+
+    for i in range(len(destroy_bullets) - 1, -1, -1):
+        bullets.remove(destroy_bullets[i])
+        destroy(destroy_bullets[i])
+
+    if held_keys['a']:
+        camera_ship.rotation_y -= 0.03
+    if held_keys['d']:
+        camera_ship.rotation_y += 0.03
+    if held_keys['w']:
+        camera_ship.rotation_x -= 0.03
+    if held_keys['s']:
+        camera_ship.rotation_x += 0.03
 
 
 def input(key):
     print(key)
     if key == "space":
-        create_sphere()
+        create_bullets()
 
 
 # player = FirstPersonController()