diff --git a/quests/exceptions.yml b/quests/exceptions.yml
index 6ffe5f5..f972be3 100644
--- a/quests/exceptions.yml
+++ b/quests/exceptions.yml
@@ -1,6 +1,67 @@
 exceptions:
   - condition:
       command:
-        - '`'
-    hints:
-      - '!! 不需要輸入上下引號 !!'
+        - '[\uff21-\uff3a\uff41-\uff5a]'
+    responses:
+      - type: narrative
+        content:
+          - '!! 請使用半形英文字母 !!'
+
+  - condition:
+      command:
+        - '　'
+    responses:
+      - type: narrative
+        content:
+          - '!! 請使用半形空格 !!'
+
+  - condition:
+      or:
+        - command:
+            - '`'
+        - command:
+            - \'
+    responses:
+      - type: narrative
+        content:
+          - '!! 不需要輸入上下引號 !!'
+
+  - condition:
+      command:
+        - ^echo\S*$
+    responses:
+      - type: narrative
+        content:
+          - '!! `echo` 後面要加空格 !!'
+
+  - condition:
+      command:
+        - ^cd\S*$
+    responses:
+      - type: narrative
+        content:
+          - '!! `cd` 後面要加空格 !!'
+
+  - condition:
+      command:
+        - ^ls\S*$
+    responses:
+      - type: narrative
+        content:
+          - '!! `ls` 後面要加空格 !!'
+
+  - condition:
+      command:
+        - ^[Ii]s$
+    responses:
+      - type: narrative
+        content:
+          - '!! `ls` 的首字母是小寫的 `L`，不是 `I` !!'
+
+  - condition:
+      command:
+        - 嗨
+    responses:
+      - type: narrative
+        content:
+          - '嗨～'
diff --git a/quests/explore/game.yml b/quests/explore/game.yml
index 5aa292e..cc65698 100644
--- a/quests/explore/game.yml
+++ b/quests/explore/game.yml
@@ -42,13 +42,6 @@ stages:
             content:
               - 請先回到 `/home/commander/` 資料夾
               - 輸入 `cd ~` 來返回 `/home/commander/` 資料夾
-      - condition:
-          command:
-            - ^[Ii]s$
-        responses:
-          - type: narrative
-            content:
-              - '!! `ls` 的首字母是小寫的 `L`，不是 `I` !!'
     responses:
       - content:
           - 你應該能看到資料夾中的內容了。
diff --git a/quests/get-started/game.yml b/quests/get-started/game.yml
index 9fd00fb..ba3e277 100644
--- a/quests/get-started/game.yml
+++ b/quests/get-started/game.yml
@@ -7,6 +7,7 @@ instruction: |
 
   在畫面的中間可以看到終端機和提示兩個區塊。
   請你在終端機中的 `commander:~ $` 後面輸入 `echo start` 並按下 Enter 來開始教程。
+  !! 注意：不需要輸入上下引號 !!
 
 stages:
   - id: start
@@ -65,6 +66,7 @@ stages:
     hints:
       - ➤  按下 `Ctrl + C` 能夠中斷指令
       - ➤  劇情進行時可以按下 `Enter` 來快速跳過
+      - ➤  輸入 `echo finish` 來結束這一關
 
   - id: END
     task: 結束關卡
diff --git a/quests/helloworld/game.yml b/quests/helloworld/game.yml
index 05e382a..259dac5 100644
--- a/quests/helloworld/game.yml
+++ b/quests/helloworld/game.yml
@@ -12,9 +12,9 @@ stages:
     task: 輸入 `echo help` 來朗誦咒語
     condition:
       pwd:
-        - '^/home/commander$'
+        - ^/home/commander$
       command:
-        - echo [Hh]elp
+        - ^echo [Hh]elp$
     responses:
       - type: narrative
         content:
@@ -39,9 +39,9 @@ stages:
       - help
     condition:
       pwd:
-        - '^/home/commander$'
+        - ^/home/commander$
       command:
-        - ls
+        - ^ls$
     responses:
       - type: narrative
         content:
@@ -65,9 +65,9 @@ stages:
       - find-scroll
     condition:
       pwd:
-        - '^/home/commander$'
+        - ^/home/commander$
       command:
-        - cat forgotten_scroll.txt
+        - ^cat forgotten_scroll.txt$
     responses:
       - type: dialogue
         speaker: Unix 精靈
@@ -83,9 +83,9 @@ stages:
       - read-forgotten-scroll
     condition:
       pwd:
-        - '^/home/commander$'
+        - ^/home/commander$
       command:
-        - echo [Hh]ello\s*[Ww]orld
+        - ^echo [Hh]ello\s*[Ww]orld$
     responses:
       - type: narrative
         content: