In this submit, i wokred on making the game more to how i want it.

I was able to get it to move and start from the center.
My next goal is to move around and pick up "food" for my snake.

nav_game.py

@@ -1,7 +1,9 @@
 from retro.game import Game
-from player import Player 
+from player import Player
+
 
 board_size = (100, 25)
 player = Player(board_size)
-game = Game([player], {"score": 0}, board_size=board_size, color = "pink", debug=TRUE)
-game.play()
+game = Game([player],{"score": 0}, board_size=board_size, color="pink", debug=True,) 
+
+game.play()

player.py

@@ -4,25 +4,39 @@ class Player:
 	
 	def __init__(self, board_size):
 		board_width, board_height = board_size
-		self.position = (board_width // 2, board_height - 1)
-		
+		start_x = board_width // 2
+		start_y = board_height // 2
+
+		self.position = (start_x, start_y)
+		self.body = [self.position]
+		self.direction = (1, 0)
+
 	def handle_keystroke(self, keystroke, game):
-		x, y = self.position
+		x, y = self.body[0]
+
 		if keystroke.name in ("KEY_LEFT", "KEY_RIGHT", "KEY_UP", "KEY_DOWN"):
-			if keystroke.name == "KEY_LEFT": 
-				new_position = (x - 1, y)
 
-			elif keystroke.name == "KEY_RIGHT": 
-					new_position = (x +1, y)
+			if keystroke.name == "KEY_LEFT":
+				self.direction = (-1, 0)
+			elif keystroke.name == "KEY_RIGHT":
+				self.direction = (1, 0)
+			elif keystroke.name == "KEY_UP":
+				self.direction = (0, -1)
+			elif keystroke.name == "KEY_DOWN":
+				self.direction = (0, 1)
 
-			elif keystroke.name == "KEY_UP": 
-					new_position = (x, y-1)
-				
-			elif keystroke.name == "KEY_DOWN": 
-					new_position = (x, y+1)
+			dx, dy = self.direction
+			new_head = (x + dx, y + dy)
 
-			if game.on_board(new_position):
-				if game.is_empty(new_position):
-					self.position = new_position
-				else:
-					game.end()
+			if not game.on_board(new_head):
+				game.end()
+				return
+
+			if new_head in self.body:
+				game.end()
+				return
+
+			self.body.insert(0, new_head)
+			self.body.pop()
+
+			self.position = self.body[0]