diff --git a/squirrelbattle/display/display.py b/squirrelbattle/display/display.py
index 29295de..6257427 100644
--- a/squirrelbattle/display/display.py
+++ b/squirrelbattle/display/display.py
@@ -159,9 +159,19 @@ class Display:
 
         if last_y >= window_y and last_x >= window_x:
             # Refresh the pad only if coordinates are valid
-            pad.refresh(top_y, top_x, window_y, window_x, last_y, last_x)
+            pad.noutrefresh(top_y, top_x, window_y, window_x, last_y, last_x)
 
     def display(self) -> None:
+        """
+        Draw the content of the display and refresh pads.
+        """
+        raise NotImplementedError
+
+    def update(self, game: Game) -> None:
+        """
+        The game state was updated.
+        Indicate what to do with the new state.
+        """
         raise NotImplementedError
 
     def handle_click(self, y: int, x: int, game: Game) -> None:
diff --git a/squirrelbattle/display/display_manager.py b/squirrelbattle/display/display_manager.py
index f9b3f01..70879b1 100644
--- a/squirrelbattle/display/display_manager.py
+++ b/squirrelbattle/display/display_manager.py
@@ -49,17 +49,13 @@ class DisplayManager:
             self.handle_mouse_click(*params)
 
     def update_game_components(self) -> None:
+        """
+        The game state was updated.
+        Trigger all displays of these modifications.
+        """
         for d in self.displays:
             d.pack = TexturePack.get_pack(self.game.settings.TEXTURE_PACK)
-        self.mapdisplay.update_map(self.game.map)
-        self.statsdisplay.update_player(self.game.player)
-        self.game.inventory_menu.update_player(self.game.player)
-        self.game.store_menu.update_merchant(self.game.player)
-        self.playerinventorydisplay.update_menu(self.game.inventory_menu)
-        self.storeinventorydisplay.update_menu(self.game.store_menu)
-        self.settingsmenudisplay.update_menu(self.game.settings_menu)
-        self.logsdisplay.update_logs(self.game.logs)
-        self.messagedisplay.update_message(self.game.message)
+            d.update(self.game)
 
     def handle_mouse_click(self, y: int, x: int) -> None:
         displays = self.refresh()
@@ -75,6 +71,7 @@ class DisplayManager:
 
     def refresh(self) -> List[Display]:
         displays = []
+        pack = TexturePack.get_pack(self.game.settings.TEXTURE_PACK)
 
         if self.game.state == GameMode.PLAY \
                 or self.game.state == GameMode.INVENTORY \
@@ -97,14 +94,24 @@ class DisplayManager:
 
             if self.game.state == GameMode.INVENTORY:
                 self.playerinventorydisplay.refresh(
-                    self.rows // 10, self.cols // 2,
-                    8 * self.rows // 10, 2 * self.cols // 5)
+                    self.rows // 10,
+                    pack.tile_width * (self.cols // (2 * pack.tile_width)),
+                    8 * self.rows // 10,
+                    pack.tile_width * (2 * self.cols // (5 * pack.tile_width)))
                 displays.append(self.playerinventorydisplay)
             elif self.game.state == GameMode.STORE:
                 self.storeinventorydisplay.refresh(
-                    self.rows // 10, self.cols // 2,
-                    8 * self.rows // 10, 2 * self.cols // 5)
+                    self.rows // 10,
+                    pack.tile_width * (self.cols // (2 * pack.tile_width)),
+                    8 * self.rows // 10,
+                    pack.tile_width * (2 * self.cols // (5 * pack.tile_width)))
+                self.playerinventorydisplay.refresh(
+                    self.rows // 10,
+                    pack.tile_width * (self.cols // (10 * pack.tile_width)),
+                    8 * self.rows // 10,
+                    pack.tile_width * (2 * self.cols // (5 * pack.tile_width)))
                 displays.append(self.storeinventorydisplay)
+                displays.append(self.playerinventorydisplay)
         elif self.game.state == GameMode.MAINMENU:
             self.mainmenudisplay.refresh(0, 0, self.rows, self.cols)
             displays.append(self.mainmenudisplay)
@@ -117,7 +124,8 @@ class DisplayManager:
             for line in self.game.message.split("\n"):
                 height += 1
                 width = max(width, len(line))
-            y, x = (self.rows - height) // 2, (self.cols - width) // 2
+            y = pack.tile_width * (self.rows - height) // (2 * pack.tile_width)
+            x = pack.tile_width * ((self.cols - width) // (2 * pack.tile_width))
             self.messagedisplay.refresh(y, x, height, width)
             displays.append(self.messagedisplay)
 
diff --git a/squirrelbattle/display/logsdisplay.py b/squirrelbattle/display/logsdisplay.py
index b768a0e..bb53e48 100644
--- a/squirrelbattle/display/logsdisplay.py
+++ b/squirrelbattle/display/logsdisplay.py
@@ -2,17 +2,19 @@
 # SPDX-License-Identifier: GPL-3.0-or-later
 
 from squirrelbattle.display.display import Display
+from squirrelbattle.game import Game
 from squirrelbattle.interfaces import Logs
 
 
 class LogsDisplay(Display):
+    logs: Logs
 
     def __init__(self, *args) -> None:
         super().__init__(*args)
         self.pad = self.newpad(self.rows, self.cols)
 
-    def update_logs(self, logs: Logs) -> None:
-        self.logs = logs
+    def update(self, game: Game) -> None:
+        self.logs = game.logs
 
     def display(self) -> None:
         messages = self.logs.messages[-self.height:]
diff --git a/squirrelbattle/display/mapdisplay.py b/squirrelbattle/display/mapdisplay.py
index 54d9432..7e21adb 100644
--- a/squirrelbattle/display/mapdisplay.py
+++ b/squirrelbattle/display/mapdisplay.py
@@ -3,18 +3,22 @@
 
 from squirrelbattle.interfaces import Map
 from .display import Display
+from ..game import Game
 
 
 class MapDisplay(Display):
+    map: Map
 
     def __init__(self, *args):
         super().__init__(*args)
 
-    def update_map(self, m: Map) -> None:
-        self.map = m
-        self.pad = self.newpad(m.height, self.pack.tile_width * m.width + 1)
+    def update(self, game: Game) -> None:
+        self.map = game.map
+        self.pad = self.newpad(self.map.height,
+                               self.pack.tile_width * self.map.width + 1)
 
     def update_pad(self) -> None:
+        self.pad.resize(500, 500)
         self.addstr(self.pad, 0, 0, self.map.draw_string(self.pack),
                     self.pack.tile_fg_color, self.pack.tile_bg_color)
         for e in self.map.entities:
diff --git a/squirrelbattle/display/menudisplay.py b/squirrelbattle/display/menudisplay.py
index a00d0fe..c71142e 100644
--- a/squirrelbattle/display/menudisplay.py
+++ b/squirrelbattle/display/menudisplay.py
@@ -5,9 +5,10 @@ import curses
 from random import randint
 from typing import List
 
-from squirrelbattle.menus import Menu, MainMenu
+from squirrelbattle.menus import Menu, MainMenu, SettingsMenu, StoreMenu
 from .display import Box, Display
-from ..enums import KeyValues
+from ..entities.player import Player
+from ..enums import KeyValues, GameMode
 from ..game import Game
 from ..resources import ResourceManager
 from ..translations import gettext as _
@@ -17,6 +18,7 @@ class MenuDisplay(Display):
     """
     A class to display the menu objects
     """
+    menu: Menu
     position: int
 
     def __init__(self, *args, **kwargs):
@@ -80,6 +82,11 @@ class SettingsMenuDisplay(MenuDisplay):
     """
     A class to display specifically a settingsmenu object
     """
+    menu: SettingsMenu
+
+    def update(self, game: Game) -> None:
+        self.update_menu(game.settings_menu)
+
     @property
     def values(self) -> List[str]:
         return [_(a[1][1]) + (" : "
@@ -122,6 +129,9 @@ class MainMenuDisplay(Display):
             menuy, menux, min(self.menudisplay.preferred_height,
                               self.height - menuy), menuwidth)
 
+    def update(self, game: Game) -> None:
+        self.menudisplay.update_menu(game.main_menu)
+
     def handle_click(self, y: int, x: int, game: Game) -> None:
         menuwidth = min(self.menudisplay.preferred_width, self.width)
         menuy, menux = len(self.title) + 8, self.width // 2 - menuwidth // 2 - 1
@@ -135,13 +145,33 @@ class MainMenuDisplay(Display):
 
 
 class PlayerInventoryDisplay(MenuDisplay):
+    player: Player = None
+    selected: bool = True
+    store_mode: bool = False
+
+    def update(self, game: Game) -> None:
+        self.player = game.player
+        self.update_menu(game.inventory_menu)
+        self.store_mode = game.state == GameMode.STORE
+        self.selected = game.state == GameMode.INVENTORY \
+            or (self.store_mode and not game.is_in_store_menu)
+
     def update_pad(self) -> None:
         self.menubox.update_title(_("INVENTORY"))
         for i, item in enumerate(self.menu.values):
             rep = self.pack[item.name.upper()]
-            selection = f"[{rep}]" if i == self.menu.position else f" {rep} "
+            selection = f"[{rep}]" if i == self.menu.position \
+                and self.selected else f" {rep} "
             self.addstr(self.pad, i + 1, 0, selection
-                        + " " + item.translated_name.capitalize())
+                        + " " + item.translated_name.capitalize()
+                        + (": " + str(item.price) + " Hazels"
+                           if self.store_mode else ""))
+
+        if self.store_mode:
+            price = f"{self.pack.HAZELNUT} {self.player.hazel} Hazels"
+            width = len(price) + (self.pack.tile_width - 1)
+            self.addstr(self.pad, self.height - 3, self.width - width - 2,
+                        price, italic=True)
 
     @property
     def truewidth(self) -> int:
@@ -156,19 +186,33 @@ class PlayerInventoryDisplay(MenuDisplay):
         We can select a menu item with the mouse.
         """
         self.menu.position = max(0, min(len(self.menu.values) - 1, y - 2))
+        game.is_in_store_menu = False
         game.handle_key_pressed(KeyValues.ENTER)
 
 
 class StoreInventoryDisplay(MenuDisplay):
+    menu: StoreMenu
+    selected: bool = False
+
+    def update(self, game: Game) -> None:
+        self.update_menu(game.store_menu)
+        self.selected = game.is_in_store_menu
+
     def update_pad(self) -> None:
         self.menubox.update_title(_("STALL"))
         for i, item in enumerate(self.menu.values):
             rep = self.pack[item.name.upper()]
-            selection = f"[{rep}]" if i == self.menu.position else f" {rep} "
+            selection = f"[{rep}]" if i == self.menu.position \
+                and self.selected else f" {rep} "
             self.addstr(self.pad, i + 1, 0, selection
                         + " " + item.translated_name.capitalize()
                         + ": " + str(item.price) + " Hazels")
 
+        price = f"{self.pack.HAZELNUT} {self.menu.merchant.hazel} Hazels"
+        width = len(price) + (self.pack.tile_width - 1)
+        self.addstr(self.pad, self.height - 3, self.width - width - 2, price,
+                    italic=True)
+
     @property
     def truewidth(self) -> int:
         return max(1, self.height if hasattr(self, "height") else 10)
@@ -182,4 +226,5 @@ class StoreInventoryDisplay(MenuDisplay):
         We can select a menu item with the mouse.
         """
         self.menu.position = max(0, min(len(self.menu.values) - 1, y - 2))
+        game.is_in_store_menu = True
         game.handle_key_pressed(KeyValues.ENTER)
diff --git a/squirrelbattle/display/messagedisplay.py b/squirrelbattle/display/messagedisplay.py
index 32f7139..271055a 100644
--- a/squirrelbattle/display/messagedisplay.py
+++ b/squirrelbattle/display/messagedisplay.py
@@ -3,6 +3,7 @@
 import curses
 
 from squirrelbattle.display.display import Box, Display
+from squirrelbattle.game import Game
 
 
 class MessageDisplay(Display):
@@ -17,8 +18,8 @@ class MessageDisplay(Display):
         self.message = ""
         self.pad = self.newpad(1, 1)
 
-    def update_message(self, msg: str) -> None:
-        self.message = msg
+    def update(self, game: Game) -> None:
+        self.message = game.message
 
     def display(self) -> None:
         self.box.refresh(self.y - 1, self.x - 2,
diff --git a/squirrelbattle/display/statsdisplay.py b/squirrelbattle/display/statsdisplay.py
index 9937c3e..ef358bb 100644
--- a/squirrelbattle/display/statsdisplay.py
+++ b/squirrelbattle/display/statsdisplay.py
@@ -4,6 +4,7 @@
 import curses
 
 from ..entities.player import Player
+from ..game import Game
 from ..translations import gettext as _
 from .display import Display
 
@@ -15,8 +16,8 @@ class StatsDisplay(Display):
         super().__init__(*args, **kwargs)
         self.pad = self.newpad(self.rows, self.cols)
 
-    def update_player(self, p: Player) -> None:
-        self.player = p
+    def update(self, game: Game) -> None:
+        self.player = game.player
 
     def update_pad(self) -> None:
         string2 = "Player -- LVL {}\nEXP {}/{}\nHP {}/{}"\
diff --git a/squirrelbattle/display/texturepack.py b/squirrelbattle/display/texturepack.py
index f72cd97..1f6dc76 100644
--- a/squirrelbattle/display/texturepack.py
+++ b/squirrelbattle/display/texturepack.py
@@ -97,7 +97,7 @@ TexturePack.SQUIRREL_PACK = TexturePack(
     MERCHANT='🦜',
     RABBIT='🐇',
     SUNFLOWER='🌻',
-    SWORD='🗡️',
+    SWORD='🗡️ ',
     TEDDY_BEAR='🧸',
     TIGER='🐅',
     WALL='🧱',
diff --git a/squirrelbattle/game.py b/squirrelbattle/game.py
index ed3b60f..0553d2e 100644
--- a/squirrelbattle/game.py
+++ b/squirrelbattle/game.py
@@ -34,6 +34,7 @@ class Game:
         """
         self.state = GameMode.MAINMENU
         self.waiting_for_friendly_key = False
+        self.is_in_store_menu = True
         self.settings = Settings()
         self.settings.load_settings()
         self.settings.write_settings()
@@ -51,7 +52,7 @@ class Game:
         Create a new game on the screen.
         """
         # TODO generate a new map procedurally
-        self.map = Map.load(ResourceManager.get_asset_path("example_map.txt"))
+        self.map = Map.load(ResourceManager.get_asset_path("example_map_2.txt"))
         self.map.logs = self.logs
         self.logs.clear()
         self.player = Player()
@@ -60,16 +61,18 @@ class Game:
         self.map.spawn_random_entities(randint(3, 10))
         self.inventory_menu.update_player(self.player)
 
-    def run(self, screen: Any) -> None:
+    def run(self, screen: Any) -> None:  # pragma no cover
         """
         Main infinite loop.
         We wait for the player's action, then we do what that should be done
         when the given key gets pressed.
         """
-        while True:  # pragma no cover
+        screen.refresh()
+        while True:
             screen.erase()
-            screen.refresh()
+            screen.noutrefresh()
             self.display_actions(DisplayActions.REFRESH)
+            curses.doupdate()
             key = screen.getkey()
             if key == "KEY_MOUSE":
                 _ignored1, x, y, _ignored2, _ignored3 = curses.getmouse()
@@ -162,7 +165,9 @@ class Game:
                     self.logs.add_message(msg)
                     if entity.is_merchant():
                         self.state = GameMode.STORE
+                        self.is_in_store_menu = True
                         self.store_menu.update_merchant(entity)
+                        self.display_actions(DisplayActions.UPDATE)
 
     def handle_key_pressed_inventory(self, key: KeyValues) -> None:
         """
@@ -191,22 +196,33 @@ class Game:
         """
         In a store menu, we can buy items or close the menu.
         """
-        if key == KeyValues.SPACE:
+        menu = self.store_menu if self.is_in_store_menu else self.inventory_menu
+
+        if key == KeyValues.SPACE or key == KeyValues.INVENTORY:
             self.state = GameMode.PLAY
         elif key == KeyValues.UP:
-            self.store_menu.go_up()
+            menu.go_up()
         elif key == KeyValues.DOWN:
-            self.store_menu.go_down()
-        if self.store_menu.values and not self.player.dead:
+            menu.go_down()
+        elif key == KeyValues.LEFT:
+            self.is_in_store_menu = False
+            self.display_actions(DisplayActions.UPDATE)
+        elif key == KeyValues.RIGHT:
+            self.is_in_store_menu = True
+            self.display_actions(DisplayActions.UPDATE)
+        if menu.values and not self.player.dead:
             if key == KeyValues.ENTER:
-                item = self.store_menu.validate()
-                flag = item.be_sold(self.player, self.store_menu.merchant)
+                item = menu.validate()
+                owner = self.store_menu.merchant if self.is_in_store_menu \
+                    else self.player
+                buyer = self.player if self.is_in_store_menu \
+                    else self.store_menu.merchant
+                flag = item.be_sold(buyer, owner)
                 if not flag:
-                    self.message = _("You do not have enough money")
-                    self.display_actions(DisplayActions.UPDATE)
+                    self.message = _("The buyer does not have enough money")
+                self.display_actions(DisplayActions.UPDATE)
             # Ensure that the cursor has a good position
-            self.store_menu.position = min(self.store_menu.position,
-                                           len(self.store_menu.values) - 1)
+            menu.position = min(menu.position, len(menu.values) - 1)
 
     def handle_key_pressed_main_menu(self, key: KeyValues) -> None:
         """
diff --git a/squirrelbattle/locale/de/LC_MESSAGES/squirrelbattle.po b/squirrelbattle/locale/de/LC_MESSAGES/squirrelbattle.po
index 39cfeec..29bf10e 100644
--- a/squirrelbattle/locale/de/LC_MESSAGES/squirrelbattle.po
+++ b/squirrelbattle/locale/de/LC_MESSAGES/squirrelbattle.po
@@ -59,8 +59,8 @@ msgid "{player} exchanged its body with {entity}."
 msgstr "{player} täuscht seinem Körper mit {entity} aus."
 
 #: squirrelbattle/game.py:205 squirrelbattle/tests/game_test.py:573
-msgid "You do not have enough money"
-msgstr "Sie haben nicht genug Geld"
+msgid "The buyer does not have enough money"
+msgstr "Der Kaufer hat nicht genug Geld"
 
 #: squirrelbattle/game.py:249
 msgid ""
diff --git a/squirrelbattle/locale/es/LC_MESSAGES/squirrelbattle.po b/squirrelbattle/locale/es/LC_MESSAGES/squirrelbattle.po
index f4d1c3c..8a7bc3e 100644
--- a/squirrelbattle/locale/es/LC_MESSAGES/squirrelbattle.po
+++ b/squirrelbattle/locale/es/LC_MESSAGES/squirrelbattle.po
@@ -58,8 +58,8 @@ msgid "{player} exchanged its body with {entity}."
 msgstr "{player} intercambió su cuerpo con {entity}."
 
 #: squirrelbattle/game.py:205 squirrelbattle/tests/game_test.py:573
-msgid "You do not have enough money"
-msgstr "No tienes suficiente dinero"
+msgid "The buyer does not have enough money"
+msgstr "El comprador no tiene suficiente dinero"
 
 #: squirrelbattle/game.py:249
 msgid ""
diff --git a/squirrelbattle/locale/fr/LC_MESSAGES/squirrelbattle.po b/squirrelbattle/locale/fr/LC_MESSAGES/squirrelbattle.po
index 8b1c4db..ffbfdce 100644
--- a/squirrelbattle/locale/fr/LC_MESSAGES/squirrelbattle.po
+++ b/squirrelbattle/locale/fr/LC_MESSAGES/squirrelbattle.po
@@ -59,8 +59,8 @@ msgid "{player} exchanged its body with {entity}."
 msgstr "{player} a échangé son corps avec {entity}."
 
 #: squirrelbattle/game.py:205 squirrelbattle/tests/game_test.py:573
-msgid "You do not have enough money"
-msgstr "Vous n'avez pas assez d'argent"
+msgid "The buyer does not have enough money"
+msgstr "L'acheteur n'a pas assez d'argent"
 
 #: squirrelbattle/game.py:249
 msgid ""
diff --git a/squirrelbattle/menus.py b/squirrelbattle/menus.py
index e0087a3..458c7b4 100644
--- a/squirrelbattle/menus.py
+++ b/squirrelbattle/menus.py
@@ -132,11 +132,11 @@ class InventoryMenu(Menu):
 
 
 class StoreMenu(Menu):
-    merchant: Merchant
+    merchant: Merchant = None
 
     def update_merchant(self, merchant: Merchant) -> None:
         self.merchant = merchant
 
     @property
     def values(self) -> list:
-        return self.merchant.inventory
+        return self.merchant.inventory if self.merchant else []
diff --git a/squirrelbattle/tests/game_test.py b/squirrelbattle/tests/game_test.py
index 52aeeaf..6751016 100644
--- a/squirrelbattle/tests/game_test.py
+++ b/squirrelbattle/tests/game_test.py
@@ -12,6 +12,7 @@ from ..entities.items import Bomb, Heart, Sword, Explosion
 from ..entities.player import Player
 from ..enums import DisplayActions
 from ..game import Game, KeyValues, GameMode
+from ..interfaces import Map
 from ..menus import MainMenuValues
 from ..resources import ResourceManager
 from ..settings import Settings
@@ -25,6 +26,10 @@ class TestGame(unittest.TestCase):
         """
         self.game = Game()
         self.game.new_game()
+        self.game.map = Map.load(
+            ResourceManager.get_asset_path("example_map.txt"))
+        self.game.map.add_entity(self.game.player)
+        self.game.player.move(self.game.map.start_y, self.game.map.start_x)
         self.game.logs.add_message("Hello World !")
         display = DisplayManager(None, self.game)
         self.game.display_actions = display.handle_display_action
@@ -399,6 +404,7 @@ class TestGame(unittest.TestCase):
         Check that some functions are not implemented, only for coverage.
         """
         self.assertRaises(NotImplementedError, Display.display, None)
+        self.assertRaises(NotImplementedError, Display.update, None, self.game)
 
     def test_messages(self) -> None:
         """
@@ -546,18 +552,21 @@ class TestGame(unittest.TestCase):
         # Navigate in the menu
         self.game.handle_key_pressed(KeyValues.DOWN)
         self.game.handle_key_pressed(KeyValues.DOWN)
+        self.game.handle_key_pressed(KeyValues.LEFT)
+        self.assertFalse(self.game.is_in_store_menu)
+        self.game.handle_key_pressed(KeyValues.RIGHT)
+        self.assertTrue(self.game.is_in_store_menu)
         self.game.handle_key_pressed(KeyValues.UP)
         self.assertEqual(self.game.store_menu.position, 1)
 
         self.game.player.hazel = 0x7ffff42ff
 
         # The second item is not a heart
-        merchant.inventory[1] = Sword()
+        merchant.inventory[1] = sword = Sword()
         # Buy the second item by clicking on it
         item = self.game.store_menu.validate()
         self.assertIn(item, merchant.inventory)
         self.game.display_actions(DisplayActions.MOUSE, 7, 25)
-        self.game.handle_key_pressed(KeyValues.ENTER)
         self.assertIn(item, self.game.player.inventory)
         self.assertNotIn(item, merchant.inventory)
 
@@ -579,9 +588,24 @@ class TestGame(unittest.TestCase):
         self.game.handle_key_pressed(KeyValues.ENTER)
         self.assertNotIn(item, self.game.player.inventory)
         self.assertIn(item, merchant.inventory)
-        self.assertEqual(self.game.message, _("You do not have enough money"))
+        self.assertEqual(self.game.message,
+                         _("The buyer does not have enough money"))
         self.game.handle_key_pressed(KeyValues.ENTER)
 
+        # Sell an item
+        self.game.inventory_menu.position = len(self.game.player.inventory) - 1
+        self.game.handle_key_pressed(KeyValues.LEFT)
+        self.assertFalse(self.game.is_in_store_menu)
+        self.assertIn(sword, self.game.player.inventory)
+        self.assertEqual(self.game.inventory_menu.validate(), sword)
+        old_player_money, old_merchant_money = self.game.player.hazel,\
+            merchant.hazel
+        self.game.handle_key_pressed(KeyValues.ENTER)
+        self.assertNotIn(sword, self.game.player.inventory)
+        self.assertIn(sword, merchant.inventory)
+        self.assertEqual(self.game.player.hazel, old_player_money + sword.price)
+        self.assertEqual(merchant.hazel, old_merchant_money - sword.price)
+
         # Exit the menu
         self.game.handle_key_pressed(KeyValues.SPACE)
         self.assertEqual(self.game.state, GameMode.PLAY)
diff --git a/squirrelbattle/tests/screen.py b/squirrelbattle/tests/screen.py
index 9a8afe6..470aeef 100644
--- a/squirrelbattle/tests/screen.py
+++ b/squirrelbattle/tests/screen.py
@@ -12,8 +12,8 @@ class FakePad:
     def addstr(self, y: int, x: int, message: str, color: int = 0) -> None:
         pass
 
-    def refresh(self, pminrow: int, pmincol: int, sminrow: int,
-                smincol: int, smaxrow: int, smaxcol: int) -> None:
+    def noutrefresh(self, pminrow: int, pmincol: int, sminrow: int,
+                    smincol: int, smaxrow: int, smaxcol: int) -> None:
         pass
 
     def erase(self) -> None: