diff --git a/assets/DataBase.db b/assets/DataBase.db
index c7769f5..9040098 100644
Binary files a/assets/DataBase.db and b/assets/DataBase.db differ
diff --git a/danmaku/database/construct.py b/danmaku/database/construct.py
index 81326a7..592f9cb 100644
--- a/danmaku/database/construct.py
+++ b/danmaku/database/construct.py
@@ -114,5 +114,6 @@
     hp=1300,
     dm=500,
     endurance=1,
+    hitbox_radius=10,
 )
 player.save()
diff --git a/danmaku/database/database.py b/danmaku/database/database.py
index eff2ee9..eb8ce89 100644
--- a/danmaku/database/database.py
+++ b/danmaku/database/database.py
@@ -44,6 +44,7 @@ def get_player_type(name) -> dict:
         "hp": a.hp,
         "dm": a.dm,
         "endurance": a.endurance,
+        "hitbox_radius": a.hitbox_radius,
     }
 
 
diff --git a/danmaku/database/models.py b/danmaku/database/models.py
index 1e22f1b..6a7753f 100644
--- a/danmaku/database/models.py
+++ b/danmaku/database/models.py
@@ -55,6 +55,7 @@ class PlayerTypes(BaseModel):
     hp = IntegerField()
     dm = IntegerField()
     endurance = FloatField()
+    hitbox_radius = IntegerField()
 
 
 class SavedObjects(BaseModel):
diff --git a/danmaku/game.py b/danmaku/game.py
index eb370d4..0ee5a3e 100644
--- a/danmaku/game.py
+++ b/danmaku/game.py
@@ -198,7 +198,7 @@ def update(self):
     def draw(self):
         self.graphics.draw_sprite(self.background_object)
 
-        self.graphics.draw_sprite(self.player)
+        self.player.draw(self.graphics)
 
         for enemy in self.enemies:
             self.graphics.draw_sprite(enemy)
diff --git a/danmaku/gameobject.py b/danmaku/gameobject.py
index bd19759..370db1c 100644
--- a/danmaku/gameobject.py
+++ b/danmaku/gameobject.py
@@ -10,6 +10,8 @@ class GameObject(Sprite):
     A base game entity object.
     """
 
+    hitbox_radius: int
+
     def __init__(
         self,
         xy: tuple[int | float, int | float],
@@ -31,9 +33,10 @@ def __init__(
     def update(self, delta: int | float):
         self.x += self.vx * delta * self.speed
         self.y += self.vy * delta * self.speed
+
         self.rect.x, self.rect.y, self.rect.w, self.rect.h = (
-            self.x,
-            self.y,
+            self.x - self.width / 2,
+            self.y - self.height / 2,
             self.width,
             self.height,
         )
diff --git a/danmaku/player.py b/danmaku/player.py
index f6104d2..3840358 100644
--- a/danmaku/player.py
+++ b/danmaku/player.py
@@ -54,6 +54,7 @@ def __init__(
         self.last_shoot = 0
         self.shoot_v = args["shoot_v"]
         self.score = 0
+        self.hitbox_radius = args["hitbox_radius"]
 
         self.left = self.top = 0
         self.right = self.bottom = 10e6
@@ -62,7 +63,7 @@ def shoot(self) -> list[Bullet]:
         t = pygame.time.get_ticks()
         if t - self.last_shoot >= self.shoot_v:
             bullet = Bullet(
-                (self.x + (self.width // 2), self.y + (self.height // 2)),
+                (self.x, self.y),
                 self.damage,
                 "basic player bullet",
             )
@@ -85,16 +86,20 @@ def set_bounds(
 
     def update(self, delta: int | float) -> None:
         self.x += self.vx * delta * self.speed
-        self.x = constrain(self.x, self.left, self.right - self.width)
+        self.x = constrain(
+            self.x, self.left + self.width / 2, self.right - self.width / 2
+        )
 
         self.y += self.vy * delta * self.speed
-        self.y = constrain(self.y, self.top, self.bottom - self.height)
+        self.y = constrain(
+            self.y, self.top + self.height / 2, self.bottom - self.height / 2
+        )
 
         self.rect.x, self.rect.y, self.rect.w, self.rect.h = (
-            self.x,
-            self.y,
-            self.width,
-            self.height,
+            int(self.x - self.width / 2),
+            int(self.y - self.height / 2),
+            int(self.width),
+            int(self.height),
         )
 
     def animation(self) -> None:
@@ -119,8 +124,16 @@ def animation(self) -> None:
 
     def draw(self, graphics: vgame.graphics.Graphics) -> None:
         graphics.draw_sprite(self)
+        graphics.circle((self.x, self.y), self.hitbox_radius, (255, 255, 255))
 
     def collision(self, other) -> bool:
-        e = pygame.Rect(other.x - other.r, other.y - other.r, 2 * other.r, 2 * other.r)
-        s = pygame.Rect(self.x, self.y, self.width, self.height)
-        return e.colliderect(s)
+        other_rect = pygame.Rect(
+            other.x - other.r, other.y - other.r, 2 * other.r, 2 * other.r
+        )
+        self_rect = pygame.Rect(
+            self.x - self.hitbox_radius,
+            self.y - self.hitbox_radius,
+            self.hitbox_radius * 2,
+            self.hitbox_radius * 2,
+        )
+        return other_rect.colliderect(self_rect)
diff --git a/docs/mecs.md b/docs/mecs.md
index b179d86..5f65224 100644
--- a/docs/mecs.md
+++ b/docs/mecs.md
@@ -40,3 +40,31 @@ graph LR
 ```
 
 As we can see, all other scenes return to the main menu
+
+
+
+## Position, hitboxes
+
+
+Position of an object is a position of it's center point
+
+*placement:*
+```
+/-----\
+|     |
+|  *  |
+|     |
+\-----/
+```
+(where the star is at)
+
+**NOT** coordinates of left top corner
+
+*wrong placement:*
+```
+*-----\
+|     |
+|     |
+|     |
+\-----/
+```