I wrote my player code.

I'm proud of getting my player decided.
I'm stuck on trying to make the circle fall and increasing there speed.
So, far I have no new interest or idea.

nav_game.py

@@ -1,5 +1,7 @@
 from retro.game import Game
+from player import Player
 
-board_size = (25, 25)
-game = Game([], {"score": 0}, board_size=board_size)
+board_size = (100, 25)
+player = Player(board_size)
+game = Game([player], {"score": 0}, board_size=board_size)
 game.play()

player.py

@@ -0,0 +1,20 @@
+class Player:
+    name = "player"
+    character = 'O'
+
+    def __init__(self, board_size):
+        board_width, board_height = board_size
+        self.position = (board_width // 2, board_height - 1)
+
+    def handle_keystroke(self, keystroke, game):
+        x, y = self.position
+        if keystroke.name in ("KEY_LEFT", "KEY_RIGHT"):
+            if keystroke.name == "KEY_LEFT": 
+                new_position = (x - 1, y)
+            else: 
+                new_position = (x + 1, y)
+            if game.on_board(new_position):
+                if game.is_empty(new_position):
+                    self.position = new_position
+                else:
+                    game.end()