diff --git a/konami.js b/konami.js
index 162591a..01af2e3 100644
--- a/konami.js
+++ b/konami.js
@@ -24,7 +24,9 @@ Usage: konami(callback);
 					progress = 0;
 				}
 			} else {
-				progress = 0;
+				if (!(e.keyCode == 38 && progress <= 2)) {
+					progress = 0;
+				}
 			}
 		};
 
diff --git a/konami.min.js b/konami.min.js
deleted file mode 100644
index 13e0ccd..0000000
--- a/konami.min.js
+++ /dev/null
@@ -1,6 +0,0 @@
-/*! konami.js
-https://github.com/MightyPork/konami.js
-(c) MightyPork 2015, MIT License
-Usage: konami(callback);
-*/
-!function(n){"use strict";var e=n.document,o=[38,38,40,40,37,39,37,39,66,65],t=0;n.konami=function(n){var i=function(e){e.keyCode==o[t]?++t==o.length&&(console.log("コナミ"),"function"==typeof n&&n(),t=0):t=0};e.addEventListener?e.addEventListener("keyup",i):e.onkeyup=i}}(window);