diff --git a/dungeonbattle/entities/items.py b/dungeonbattle/entities/items.py
index e88a36e..23a1c6e 100644
--- a/dungeonbattle/entities/items.py
+++ b/dungeonbattle/entities/items.py
@@ -1,4 +1,4 @@
-from ..interfaces import Entity
+from ..interfaces import Entity, FightingEntity
 
 class Item(Entity):
     held:bool
@@ -13,3 +13,21 @@ class Item(Entity):
     
     def hold(self):
         self.held = True
+
+class Bomb(Item):
+    damage:int = 5
+    exploding:bool
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(self, *args, **kwargs)
+        self.exploding = False
+
+    def drop(self, x:int, y:int):
+        super.drop(self, x, y)
+        self.exploding = True
+    
+    def act(self, map):
+        if self.exploding:
+            for e in map.entities:
+                if abs (e.x - self.x) + abs (e.y - self.y) <= 1 and isinstance(e,FightingEntity):
+                    e.take_damage(self, self.damage)
diff --git a/dungeonbattle/entities/monsters.py b/dungeonbattle/entities/monsters.py
index 6f855af..9aa6c06 100644
--- a/dungeonbattle/entities/monsters.py
+++ b/dungeonbattle/entities/monsters.py
@@ -1,7 +1,7 @@
 from ..interfaces import FightingEntity
 
 class Monster(FightingEntity):
-    def behaviour(self, map):
+    def act(self, map):
         pass
 
 class Squirrel(Monster):
diff --git a/dungeonbattle/interfaces.py b/dungeonbattle/interfaces.py
index e2be5df..f1474e0 100644
--- a/dungeonbattle/interfaces.py
+++ b/dungeonbattle/interfaces.py
@@ -72,6 +72,9 @@ class Entity:
     def move(self, x: int, y: int) -> None:
         self.x = x
         self.y = y
+    
+    def act(self, m:Map):
+        pass
 
 class FightingEntity(Entity):
     maxhealth: int