diff --git a/cpp11/maze-chunk.cpp b/cpp11/maze-chunk.cpp
index a7a6905..4f00972 100644
--- a/cpp11/maze-chunk.cpp
+++ b/cpp11/maze-chunk.cpp
@@ -12,7 +12,7 @@ chunk::chunk(const chunk &other){
     w=other.w;
 }
 chunk::~chunk(){
-    player=nullptr;
+    if(player!=nullptr)delete player;
 }
 void chunk::putchunk(){
     for(unsigned short i=0;i<l;++i){
@@ -48,6 +48,8 @@ bool chunk::toline(string s,unsigned short line){
             player=new entity;
             player->x=line;
             player->y=c;
+            player->health=10;
+            player->id=0;
             blocks[line][c].id=air;
         }
         else{
diff --git a/cpp11/maze-chunk.h b/cpp11/maze-chunk.h
index 6585b88..d7b76f8 100644
--- a/cpp11/maze-chunk.h
+++ b/cpp11/maze-chunk.h
@@ -9,6 +9,7 @@ class chunk
 {
     public:
     entity *player;
+    vector<entity>monsters;
     array<array<block,16>,16>blocks;
     unsigned short l,w;
     chunk();
diff --git a/cpp11/maze-game.cpp b/cpp11/maze-game.cpp
index 89b01d3..a3cce41 100644
--- a/cpp11/maze-game.cpp
+++ b/cpp11/maze-game.cpp
@@ -94,10 +94,10 @@ void game::clear(){
 void level_menu(){
     game all;
     while(true){
-        for(unsigned short i=1;i!=5;++i){
+        for(unsigned short i=1;i!=6;++i){
             string te="1-"+tos(i);
             cout<<"1-"<<i<<' '<<lang.search("name-"+te)<<' ';
-            if(savedgame.without(te))cout<<lang.search("level-uncompleted");
+            if(savedgame.without(te))cout<<"\033[91m"<<lang.search("level-uncompleted")<<"\033[m";
             else cout<<lang.search("score")<<':'<<savedgame.tag[te];
             cout<<'\n';
         }
diff --git a/data/lang/en.txt b/data/lang/en.txt
index 367f91d..acc812e 100644
--- a/data/lang/en.txt
+++ b/data/lang/en.txt
@@ -23,3 +23,5 @@ name-1-3:Move Texts
 help-1-3:Texts can be moved if they are not blocked.
 name-1-4:Start Earning
 help-1-4:Be careful!
+name-1-5:Little Review
+help-1-5:Use q to quit.
diff --git a/data/lang/zh.txt b/data/lang/zh.txt
index 25c5907..6635965 100644
--- a/data/lang/zh.txt
+++ b/data/lang/zh.txt
@@ -23,3 +23,5 @@ name-1-3:推箱子
 help-1-3:如果不被阻挡，文字可以被推动。
 name-1-4:开始赚钱
 help-1-4:小心！
+name-1-5:小复习
+help-1-5:按q退出。
diff --git a/data/levels.data b/data/levels.data
index 6d71a3f..ef40726 100644
--- a/data/levels.data
+++ b/data/levels.data
@@ -45,3 +45,23 @@ $1-4
 #........a$..a.#
 #........a$.a%.#
 ################
+$1-5
+1 8
+################
+#@#.....#...a.$#
+#...###.$.###.##
+#a#..$#####...$#
+#.###a......a %
+#...a$######.#..
+#..a.........  $
+################
+$1-6
+1 8
+################
+#...#$.........#
+#.@.######......
+#....#.    . ##.
+#..........&{1,zombie}....
+#...#..    .....
+#.#...###..#...%
+################