diff --git a/gamescript/battle.py b/gamescript/battle.py
index 3a73bc518..4c2c8a30e 100644
--- a/gamescript/battle.py
+++ b/gamescript/battle.py
@@ -533,7 +533,13 @@ def run_game(self):
         # self.mapunitarray = [[x[random.randint(0, 1)] if i != j else 0 for i in range(1000)] for j in range(1000)]
         pygame.mixer.music.set_endevent(self.SONG_END)  # End current music before battle start
 
+        frame = 0
         while True:  # self running
+            frame += 1
+
+            if frame % 30 == 0 and hasattr(self.main, "profiler"):
+                self.main.profiler.refresh()
+
             self.fps_count.fps_show(self.clock)
             event_key_press = None
             mouse_left_up = False  # left click
@@ -577,6 +583,10 @@ def run_game(self):
                 elif event.type == pygame.KEYDOWN and event.key == K_ESCAPE:  # open/close menu
                     esc_press = True
 
+                elif event.type == pygame.KEYDOWN and event.key == K_F8:  # show/hide profiler
+                    if not hasattr(self.main, "profiler"):
+                        self.main.setup_profiler()
+
                 elif event.type == pygame.MOUSEBUTTONUP:
                     if event.button == 1:  # left click
                         mouse_left_up = True
diff --git a/gamescript/battleui.py b/gamescript/battleui.py
index a943988cd..532436c4c 100644
--- a/gamescript/battleui.py
+++ b/gamescript/battleui.py
@@ -3,6 +3,7 @@
 
 import pygame
 import pygame.freetype
+import cProfile
 
 from gamescript.common import utility
 
@@ -1263,3 +1264,29 @@ def __init__(self, image, who, battle, layer=1):
         self.battle = battle
         self.image = image
         self.rect = self.image.get_rect(center=self.who.pos)
+
+
+class Profiler(cProfile.Profile, pygame.sprite.Sprite):
+
+    def __init__(self):
+        pygame.sprite.Sprite.__init__(self)
+        size = (900, 550)
+        self.image = pygame.Surface(size)
+        self.rect = pygame.Rect((0, 0, *size))
+        font = "ubuntumono"  # TODO: feel free to change this, the most important thing is that it
+        # is monospace and works good for every developer
+        self.font = pygame.font.SysFont(font, 16)
+        self.image.fill(0x112233)
+        self._layer = 12
+
+    def refresh(self):
+        import io
+        from pstats import Stats
+        s_io = io.StringIO()
+        stats = Stats(self, stream=s_io)
+        stats.sort_stats('tottime').print_stats(20)
+        info_str = s_io.getvalue()
+        self.enable()  # profiler must be re-enabled after get stats
+        self.image.fill(0x112233)
+        for e, line in enumerate(info_str.split("\n")):
+            self.image.blit(self.font.render(line, True, pygame.Color("white")), (0, e*20))
diff --git a/gamescript/camera.py b/gamescript/camera.py
index df5c97428..5aaf21f5f 100644
--- a/gamescript/camera.py
+++ b/gamescript/camera.py
@@ -17,8 +17,8 @@ def update(self, pos, surfaces):
         camera_y = self.pos[1] - camera_h / 2  # Current camera center y
         for surface in surfaces:  # Blit sprite to camara image
             surface_x, surface_y = surface.rect.left, surface.rect.top
-            surface_w, surface_h = surface.image.get_rect().size
-            rect = Rect(surface_x - camera_x, surface_y - camera_y, surface_w,
-                        surface_h)  # get rect that shown inside camera
+            # surface_w, surface_h = surface.image.get_rect().size
+            # rect = Rect(surface_x - camera_x, surface_y - camera_y, surface_w,
+            #            surface_h)  # get rect that shown inside camera
             # if rect.x + surface_w > 0 and rect.y + surface_h > 0:
-            self.image.blit(surface.image, rect)
+            self.image.blit(surface.image, (surface_x - camera_x, surface_y - camera_y))
diff --git a/gamescript/game.py b/gamescript/game.py
index 5c93b4637..78037345c 100644
--- a/gamescript/game.py
+++ b/gamescript/game.py
@@ -793,6 +793,12 @@ def game_intro(self, screen, clock, intro):
 
         pygame.display.set_caption(version_name)  # set the self name on program border/tab
 
+    def setup_profiler(self):
+        from gamescript.battleui import Profiler
+        self.profiler = Profiler()
+        self.profiler.enable()
+        self.battle_ui_updater.add(self.profiler)
+
     def run(self):
         while True:
             # Get user input