diff --git a/resources/sound/zomboni.ogg b/resources/sound/zomboni.ogg
new file mode 100644
index 0000000..36bab88
Binary files /dev/null and b/resources/sound/zomboni.ogg differ
diff --git a/source/component/plant.py b/source/component/plant.py
index 5676770..e0729d4 100755
--- a/source/component/plant.py
+++ b/source/component/plant.py
@@ -24,7 +24,7 @@ class Car(pg.sprite.Sprite):
         self.current_time = game_info[c.CURRENT_TIME]
         if self.state == c.WALK:
             self.rect.x += 4
-        if self.rect.x > c.SCREEN_WIDTH + 40:
+        if self.rect.x > c.SCREEN_WIDTH + 60:
             self.dead = True
 
     def setWalk(self):
@@ -104,7 +104,7 @@ class Bullet(pg.sprite.Sprite):
                 if self.y_vel * (self.dest_y - self.rect.y) < 0:
                     self.rect.y = self.dest_y
             self.rect.x += self.x_vel
-            if self.rect.x >= c.SCREEN_WIDTH + 40:
+            if self.rect.x >= c.SCREEN_WIDTH + 60:
                 self.kill()
         elif self.state == c.EXPLODE:
             if (self.current_time - self.explode_timer) > 250:
@@ -206,7 +206,7 @@ class StarBullet(Bullet):
             else:
                 self.rect.x -= 10
             self.handleMapYPosition()
-            if ((self.rect.x > c.SCREEN_WIDTH + 40) or (self.rect.x < -20)
+            if ((self.rect.x > c.SCREEN_WIDTH + 60) or (self.rect.x < -40)
                 or (self.rect.y > c.SCREEN_HEIGHT) or (self.rect.y < 0)):
                 self.kill()
         elif self.state == c.EXPLODE:
diff --git a/source/component/zombie.py b/source/component/zombie.py
index 3c9e3d7..52ec289 100755
--- a/source/component/zombie.py
+++ b/source/component/zombie.py
@@ -941,6 +941,8 @@ class Zomboni(Zombie):
         self.IceFrozenPlot = IceFrozenPlot
         self.die_animate_interval = 100
         self.boomDie_animate_interval = 150
+        # 播放冰车生成音效
+        pg.mixer.Sound(os.path.join(os.path.dirname(os.path.dirname(os.path.dirname(__file__))) ,"resources", "sound", "zomboni.ogg")).play()
 
     def loadImages(self):
         self.walk_frames = []
diff --git a/source/constants.py b/source/constants.py
index 46dd37f..239a3cc 100755
--- a/source/constants.py
+++ b/source/constants.py
@@ -1,7 +1,7 @@
 # 冒险模式起始关卡
-START_LEVEL_NUM = 1
+START_LEVEL_NUM = 0
 # 小游戏模式起始关卡
-START_LITTLE_GAME_NUM = 1
+START_LITTLE_GAME_NUM = 0
 
 # 窗口标题
 ORIGINAL_CAPTION = 'pypvz'
@@ -349,7 +349,7 @@ ZOMBIE_ATTACK_DAMAGE = 50
 ZOMBIE_WALK_INTERVAL = 60  # 僵尸步行间隔
 
 # 僵尸生成位置
-ZOMBIE_START_X = SCREEN_WIDTH + 40  # 场宽度不一样，用于拟合
+ZOMBIE_START_X = SCREEN_WIDTH + 50  # 场宽度不一样，用于拟合
 
 # 状态类型
 IDLE = 'idle'
diff --git a/source/state/level.py b/source/state/level.py
index fb1a099..75beb2b 100644
--- a/source/state/level.py
+++ b/source/state/level.py
@@ -840,6 +840,7 @@ class Level(tool.State):
             # 撑杆跳生成位置不同
             self.zombie_groups[map_y].add(zombie.PoleVaultingZombie(c.ZOMBIE_START_X + randint(70, 80) + hugeWaveMove, y, self.head_group))
         elif name == c.ZOMBONI:
+            # 冰车僵尸生成位置不同
             self.zombie_groups[map_y].add(zombie.Zomboni(c.ZOMBIE_START_X + randint(55, 65) + hugeWaveMove, y, self.plant_groups[map_y], self.map, plant.IceFrozenPlot))
 
     # 能否种植物的判断：