diff --git a/IcePath.c b/IcePath.c
index 62da78f..312bf59 100644
--- a/IcePath.c
+++ b/IcePath.c
@@ -1,7 +1,7 @@
-#define VERSION "0.10"
+#define VERSION "0.11"
 
 #define N 512
-#define SPEED 30000 // less is more
+#define DELAY 25 // milliseconds
 
 #include <stdio.h>
 #include <time.h>
@@ -12,7 +12,6 @@
 void printm();
 void play();
 void move_ptr(int direction);
-void waitfor(int delay);
 void menu();
 void readfiles();
 void ranking();
@@ -164,6 +163,7 @@ void play() {
         ptr.x = level[selected.pos].start.x;
         ptr.y = level[selected.pos].start.y;
         do {
+            flushinp();
             printm();
             refresh();
             direction = getch();
@@ -222,7 +222,7 @@ void move_ptr(int direction) {
                 if (checkwin() == 1) {
                     break;
                 } else {
-                    waitfor(SPEED);
+                    napms(DELAY);
                 }
             } break;
         case KEY_RIGHT:
@@ -234,7 +234,7 @@ void move_ptr(int direction) {
                 if (checkwin() == 1) {
                     break;
                 } else {
-                    waitfor(SPEED);
+                    napms(DELAY);
                 }
             } break;
         case KEY_UP:
@@ -246,7 +246,7 @@ void move_ptr(int direction) {
                 if (checkwin() == 1) {
                     break;
                 } else {
-                    waitfor(SPEED);
+                    napms(DELAY);
                 }
             } break;
         case KEY_DOWN:
@@ -258,7 +258,7 @@ void move_ptr(int direction) {
                 if (checkwin() == 1) {
                     break;
                 } else {
-                    waitfor(SPEED);
+                    napms(DELAY);
                 }
             } break;
         default: return;
@@ -377,7 +377,7 @@ void ranking() {
     struct dataresult temp;
     char *time_string[N];
     readfiles();
-    // reord data
+    // sort data
     for (i = 0; data[i].moves != 0; i++) {
         for (j = i + 1; data[j].moves != 0; j++) {
             if (data[i].moves > data[j].moves) {
@@ -432,11 +432,3 @@ int checkwin() {
     }
     else return 0;
 }
-
-void waitfor(int delay) {
-    int time_a, time_b;
-    time_a = clock();
-    do {
-        time_b = clock();
-    } while (time_b < time_a + delay);
-}