diff --git a/README.md b/README.md
index 8fcf542..f74927b 100644
--- a/README.md
+++ b/README.md
@@ -80,7 +80,6 @@ nuitka --mingw --standalone --onefile --show-progress --show-memory --output-dir
 ## 已知bug
 
 以下问题囿于个人目前的能力与精力，没有修复：
-* 经死亡的僵尸会触发大嘴花、土豆雷甚至小推车
 * 冷冻的僵尸未用蓝色滤镜标识
 * 魅惑的僵尸未用红色滤镜标识
 * 暂停游戏时僵尸与阳光的生成仍在计时
diff --git a/resources/data/map/level_0.json b/resources/data/map/level_0.json
index e75d318..e090888 100644
--- a/resources/data/map/level_0.json
+++ b/resources/data/map/level_0.json
@@ -1,5 +1,5 @@
 {
-    "background_type":0,
+    "background_type":1,
     "init_sun_value":5000,
     "shovel":1,
     "zombie_list":[
diff --git a/source/component/plant.py b/source/component/plant.py
index 36dcfda..b55e6b6 100755
--- a/source/component/plant.py
+++ b/source/component/plant.py
@@ -195,7 +195,7 @@ class Plant(pg.sprite.Sprite):
             self.image.set_alpha(192)
 
     def canAttack(self, zombie):
-        if (self.state != c.SLEEP and zombie.state != c.DIE and
+        if (self.state != c.SLEEP and zombie.state != c.DIE and (not zombie.lostHead) and
                 self.rect.x <= zombie.rect.right):
             return True
         return False
@@ -428,7 +428,7 @@ class Chomper(Plant):
 
     def canAttack(self, zombie):
         if (self.state == c.IDLE and zombie.state != c.DIGEST and
-                self.rect.x <= zombie.rect.right and
+                self.rect.x <= zombie.rect.right and (not zombie.lostHead) and
                 (self.rect.right + c.GRID_X_SIZE >= zombie.rect.x)):
             return True
         return False
@@ -491,7 +491,7 @@ class PuffShroom(Plant):
 
     def canAttack(self, zombie):
         if (self.rect.x <= zombie.rect.right and
-                (self.rect.right + c.GRID_X_SIZE * 4 >= zombie.rect.x)):
+                (self.rect.x + c.GRID_X_SIZE * 3.5 >= zombie.rect.x)):
             return True
         return False
 
@@ -532,7 +532,7 @@ class PotatoMine(Plant):
                 self.is_init = False
 
     def canAttack(self, zombie):
-        if (not self.is_init and zombie.rect.right >= self.rect.x and
+        if (not self.is_init and zombie.rect.right >= self.rect.x and (not zombie.lostHead) and
                 (zombie.rect.x - self.rect.x) <= self.explode_x_range):
             return True
         return False
diff --git a/source/state/level.py b/source/state/level.py
index eab2023..355c338 100644
--- a/source/state/level.py
+++ b/source/state/level.py
@@ -572,7 +572,7 @@ class Level(tool.State):
         for car in self.cars:
             zombies = pg.sprite.spritecollide(car, self.zombie_groups[car.map_y], False, collided_func)
             for zombie in zombies:
-                if zombie and zombie.state != c.DIE:
+                if zombie and zombie.state != c.DIE and (not zombie.lostHead):
                     car.setWalk()
                     zombie.setDie()
             if car.dead:
@@ -707,7 +707,7 @@ class Level(tool.State):
     def checkLose(self):
         for i in range(self.map_y_len):
             for zombie in self.zombie_groups[i]:
-                if zombie.rect.right < 0:
+                if zombie.rect.right < 0 and (not zombie.lostHead):
                     return True
         return False