diff --git a/proposal.md/__pycache__/asteroid.cpython-313.pyc b/proposal.md/__pycache__/asteroid.cpython-313.pyc
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index 0000000..f5ff054
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diff --git a/proposal.md/__pycache__/asteroid_spawner.cpython-313.pyc b/proposal.md/__pycache__/asteroid_spawner.cpython-313.pyc
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index 0000000..3e935cf
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diff --git a/proposal.md/__pycache__/shooter.cpython-313.pyc b/proposal.md/__pycache__/shooter.cpython-313.pyc
new file mode 100644
index 0000000..f40f04a
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diff --git a/proposal.md/__pycache__/targets.cpython-313.pyc b/proposal.md/__pycache__/targets.cpython-313.pyc
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diff --git a/proposal.md/asteroid.py b/proposal.md/asteroid.py
new file mode 100644
index 0000000..add21a5
--- /dev/null
+++ b/proposal.md/asteroid.py
@@ -0,0 +1,19 @@
+class Asteroid:
+    character = 'O'
+
+    def __init__(self, position):
+        self.position = position
+
+    def play_turn(self, game):
+        width, height = game.board_size
+        if game.turn_number % 2 == 0: 
+            x, y = self.position
+            if y == height - 1: 
+                game.remove_agent(self)
+            else:
+                ship = game.get_agent_by_name('ship')
+                new_position = (x, y + 1)
+                if new_position == ship.position:
+                    game.end()
+                else:
+                    self.position = new_position
\ No newline at end of file
diff --git a/proposal.md/asteroid_spawner.py b/proposal.md/asteroid_spawner.py
new file mode 100644
index 0000000..ed92c70
--- /dev/null
+++ b/proposal.md/asteroid_spawner.py
@@ -0,0 +1,15 @@
+from random import randint
+from asteroid import Asteroid
+
+class AsteroidSpawner:
+    display = False
+
+    def play_turn(self, game):
+        width, height = game.board_size
+        game.state['score'] += 1
+        if self.should_spawn_asteroid(game.turn_number):
+            asteroid = Asteroid((randint(0, width - 1), 0))
+            game.add_agent(asteroid)
+
+    def should_spawn_asteroid(self, turn_number):
+        return randint(0, 1000) < turn_number
\ No newline at end of file
diff --git a/proposal.md/nav_game.py b/proposal.md/nav_game.py
index f42aa38..003698d 100644
--- a/proposal.md/nav_game.py
+++ b/proposal.md/nav_game.py
@@ -1,9 +1,14 @@
 from retro.game import Game
 from spaceship import Spaceship
-from targets import Asteroid
+# from asteroid_spawner import AsteroidSpawner
+from targets import Alien
+from shooter import Shooter
+import random
 
 board_size = (100, 25)
+width, height = board_size
 ship = Spaceship(board_size)
-targets = Asteroid((board_size[0] // 2, 0))
-game = Game([ship, targets], {"score": 0}, board_size=board_size, color="white_on_blue")
+shooter = Shooter() 
+spawner = Alien((random.randint(0, width-1), random.randint(0, height-1)))
+game = Game([ship, spawner, shooter], {"score": 0}, board_size=board_size, color="white_on_blue")
 game.play()
\ No newline at end of file
diff --git a/proposal.md/shooter.py b/proposal.md/shooter.py
new file mode 100644
index 0000000..e633efb
--- /dev/null
+++ b/proposal.md/shooter.py
@@ -0,0 +1,48 @@
+
+
+class Shooter:
+    name = "shooter"
+    character = 'I'
+    display = False
+
+    def __init__(self):
+        self.position = (0, 0)
+
+    def handle_keystroke(self, keystroke, game):
+      
+        if keystroke == ' ' and not self.display:
+            ship = game.get_agent_by_name('ship')
+            if ship is None:
+                return
+
+            x, y = ship.position
+            new_position = (x, y - 1)
+
+            if game.on_board(new_position):
+                self.position = new_position
+                self.display = True
+
+    def play_turn(self, game):
+  
+        if not self.display:
+    
+            return
+
+        x, y = self.position
+        new_position = (x, y - 1)
+
+
+        if not game.on_board(new_position):
+            self.display = False
+            return
+
+        agents_by_position = game.get_agents_by_position()
+        agents_here = agents_by_position.get(new_position, [])
+
+        for agent in agents_here:
+            if getattr(agent, "character", None) == 'A':
+                game.end()
+                return
+
+        self.position = new_position
+
diff --git a/proposal.md/targets.py b/proposal.md/targets.py
index add21a5..391ad96 100644
--- a/proposal.md/targets.py
+++ b/proposal.md/targets.py
@@ -1,19 +1,46 @@
-class Asteroid:
-    character = 'O'
+from random import randint
+
+
+class Alien:
+    character = 'A'
 
     def __init__(self, position):
         self.position = position
 
     def play_turn(self, game):
+        
         width, height = game.board_size
-        if game.turn_number % 2 == 0: 
-            x, y = self.position
-            if y == height - 1: 
-                game.remove_agent(self)
-            else:
-                ship = game.get_agent_by_name('ship')
-                new_position = (x, y + 1)
-                if new_position == ship.position:
-                    game.end()
-                else:
-                    self.position = new_position
\ No newline at end of file
+
+        x, y = self.position
+
+        directions = [
+            (-1, 0),   # left
+            (1, 0),    # right
+            (0, -1),   # up
+            (0, 1),    # down
+            (-1, -1),  # up-left
+            (-1, 1),   # down-left
+            (1, -1),   # up-right
+            (1, 1)     # down-right
+        ]
+
+        possible_positions = []
+        for dx, dy in directions:
+            new_x = x + dx
+            new_y = y + dy
+
+            if 0 <= new_x < width and 0 <= new_y < height:
+                possible_positions.append((new_x, new_y))
+       
+        if not possible_positions:
+            return
+        random_index = randint(0, len(possible_positions) - 1)
+        new_position = possible_positions[random_index]
+
+        ship = game.get_agent_by_name('ship')
+
+        if ship is not None and new_position == ship.position:
+            game.end()
+        else:
+           
+            self.position = new_position