diff --git a/roofus.c b/Roofus.c
similarity index 77%
rename from roofus.c
rename to Roofus.c
index 764be15..2c49b78 100644
--- a/roofus.c
+++ b/Roofus.c
@@ -1,4 +1,4 @@
-#define VERSION "0.23"
+#define VERSION "1.00"
 
 #define N 9
 #include <stdio.h>
@@ -6,14 +6,16 @@
 #include <stdlib.h>
 #include <string.h>
 
+void restoregrid ();
 void menu ();
-int play ();
+void play ();
 void start ();
-void settings ();
-void printm ();
 void move (char *dir);
 void nolow ();
+void settings ();
 void ranking ();
+void rules ();
+void printm ();
 int win ();
 int error ();
 
@@ -21,7 +23,8 @@ int matrix[N][N] = {0};
 int my_x;
 int my_y;
 int moves;
-int grid = 5;
+int grid;
+int gridset = 0;
 FILE *fp;
 
 int main () {
@@ -30,6 +33,7 @@ int main () {
     if (fp == NULL) {
         printf ("Error opening file");
     }else{
+        restoregrid ();
         menu ();
     }
     fclose (fp);
@@ -37,119 +41,56 @@ int main () {
     return 0;
 }
 
+// restore last grid size
+void restoregrid () {
+    int gridtemp, length;
+        fseek(fp, 0, SEEK_END);
+        length = ftell(fp);
+        fseek(fp, (length - 2), SEEK_SET); // go to grid size character
+        gridtemp = fgetc(fp) - 48; // -48 to convert char in int
+        if (gridtemp < 3 || gridtemp > 9)
+            grid = 5;
+        else
+            grid = gridtemp;
+}
+
 void menu (){
     char mode[5];
-    int menu = 1;
-    while (menu == 1) {
+    while (1) {
         system("clear");
-        printf ("Select mode:\n> 0: Play\n> 1: Settings\n> 2: Ranking\n> 3: Exit\n");
+        printf ("~~~ ROOFUS ~~~\n\n[1] Play\n[2] Ranking\n[3] Settings\n[4] Rules\n[0] Exit\n\n");
         scanf ("%5s", mode);
         switch (mode[0]) {
-            case '0': menu = play (); break;
-            case '1': settings (); break;
+            case '0': return;
+            case '1': play (); break;
             case '2': ranking (); break;
-            case '3': return;
+            case '3': settings (); break;
+            case '4': rules (); break;
         }
     }
 }
 
-void settings () {
-    char setting[5];
-    int menu = 0;
-    system("clear");
-    while (menu == 0) {
-        printf ("Menu: press 0\nGrid size? 3, 5, 7 or 9? ");
-        scanf ("%5s", setting);
-        switch (setting[0]) {
-            case '0': menu = 1; break;
-            case '3': grid = 3; menu = 1; break;
-            case '5': grid = 5; menu = 1; break;
-            case '7': grid = 7; menu = 1; break;
-            case '9': grid = 9; menu = 1; break;
-            default: printf("Retry\n"); break;
-        }
-    }
-}
-
-void ranking () {
-    int i = 0, j;
-    struct res {
-        int moves;
-        int grid;
-        char user[10];
-        time_t res_time;
-    };
-    struct res result[1000];
-    struct res temp;
-    char *time_string[1000];
-    int grid_val = 1;
-    int printed;
-    rewind (fp);
-    getchar ();
-    do {
-        fscanf (fp, "%li %d %s %d", &result[i].res_time, &result[i].moves, result[i].user, &result[i].grid);
-        i++;  
-    } while (result[i-1].moves > 0);
-    for (i = 0; result[i].moves != 0; i++) {
-        for (j = i + 1; result[j].moves != 0; j++) {
-            if (result[i].moves > result[j].moves) {
-                temp = result[i];
-                result[i] = result[j];
-                result[j] = temp;
-            }
-        }
-    }
-    do {
-        system("clear");
-        printf ("Best results: \n\n");
-        printed = 0;
-        for (i = 0; result[i].moves != 0; i++) {
-            if ((result[i].grid == grid_val || grid_val == 1) && printed < 9) {
-                time_string[i] = ctime(&result[i].res_time);
-                printf ("# %d - %3d moves\t- (%dx%d matrix) - %s\t- %s", printed + 1, result[i].moves, result[i].grid, result[i].grid, result[i].user, time_string[i]);
-                printed++;
-            }
-        }
-        if (printed == 0) {
-            printf ("Nothing to show...\n");
-        }
-        printf ("\n0: Menu;  3, 5, 7 or 9 to filter by matrix size;  1: No filter  ");
-        scanf ("%d", &grid_val);
-        getchar();
-    } while (grid_val != 0);
-}
-
-int play () {
+void play () {
     char dir[5], user[10];
     char exit = 0;
     int end = 0;
     char *text = malloc (sizeof (text) * N);
+    moves = 0;
+    system("clear");
     my_x = grid / 2;
     my_y = grid / 2;
-    moves = 0;    
-    system("clear");
     start ();
     printm ();
     while (end == 0) {
-        printf ("\nLeft: a. Up: w. Right: d. Down: s. Menu: m. Exit: 0");
+        printf ("\nLeft [a]; Up [w]; Right [d]; Down [s]. Menu [0]");
         printf ("\nDirection?  ");
         scanf ("%5s", dir);
         getchar ();
         if (dir[0] == '0') {
-            printf ("\nExit? [y/n]  ");
-            scanf ("%c", &exit);
-            if (exit == 'y') {
-                return 0;
-            } else {
-                dir[0] = '1';
-                getchar ();
-            }
-        }
-        if (dir[0] == 'm') {
             printf ("\nAre you sure? [y/n]  ");
             scanf ("%c", &exit);
             if (exit == 'y') {
-                return 1;
+                return;
             } else {
                 dir[0] = '1';
                 getchar ();
@@ -166,7 +107,7 @@ int play () {
     sprintf (text, "%li %d %s %d\n", time(NULL), moves, user, grid);
     fputs (text, fp);
     free (text);
-    return 1;
+    return;
 }
 
 void start () {
@@ -180,13 +121,9 @@ void start () {
 }
 
 void move (char *dir) {
-    int xinit, yinit;
+    int xinit = my_x, yinit = my_y;
     int stop = 0, del = 0;
     int i, j;
-
-    xinit = my_x;
-    yinit = my_y;
-    
     // move pointer
     switch (dir[0]) { 
         case 'a': 
@@ -288,6 +225,90 @@ void nolow () {
     }
 }
 
+void settings () {
+    char setting[5];
+    int menu = 0;
+    system("clear");
+    printf ("> Settings\n\n");
+    while (menu == 0) {
+        printf ("Menu [0]\nGrid size? [3-9] ");
+        scanf ("%5s", setting);
+        switch (setting[0]) {
+            case '0': menu = 1; break;
+            case '3': grid = 3; gridset = 1; menu = 1; break;
+            case '4': grid = 4; gridset = 1; menu = 1; break;
+            case '5': grid = 5; gridset = 1; menu = 1; break;
+            case '6': grid = 6; gridset = 1; menu = 1; break;
+            case '7': grid = 7; gridset = 1; menu = 1; break;
+            case '8': grid = 8; gridset = 1; menu = 1; break;
+            case '9': grid = 9; gridset = 1; menu = 1; break;
+            default: printf("Retry\n"); break;
+        }
+    }
+}
+
+void ranking () {
+    int i = 0, j;
+    struct res {
+        int moves;
+        int grid;
+        char user[10];
+        time_t res_time;
+    };
+    struct res result[1000];
+    struct res temp;
+    char *time_string[1000];
+    int grid_val = grid;
+    int printed;
+    rewind (fp);
+    getchar ();
+    do {
+        fscanf (fp, "%li %d %s %d", &result[i].res_time, &result[i].moves, result[i].user, &result[i].grid);
+        i++;  
+    } while (result[i-1].moves > 0);
+    for (i = 0; result[i].moves != 0; i++) {
+        for (j = i + 1; result[j].moves != 0; j++) {
+            if (result[i].moves > result[j].moves) {
+                temp = result[i];
+                result[i] = result[j];
+                result[j] = temp;
+            }
+        }
+    }
+    do {
+        system("clear");
+        if (grid_val >= 3 && grid_val <= 9)
+            printf ("Best results (%dx%d matrix):\n\n", grid_val, grid_val);
+        else if (grid_val == 1)
+            printf ("Best results:\n\n");
+        printed = 0;
+        for (i = 0; result[i].moves != 0; i++) {
+            if ((result[i].grid == grid_val || grid_val == 1) && printed < 9) {
+                time_string[i] = ctime(&result[i].res_time);
+                printf ("# %d - %3d moves\t- (%dx%d matrix) - %s\t- %s", printed + 1, result[i].moves, result[i].grid, result[i].grid, result[i].user, time_string[i]);
+                printed++;
+            }
+        }
+        if (printed == 0) {
+            printf ("Nothing to show...\n");
+        }
+        do {
+            printf ("\nMenu [0]; To filter by matrix size [3-9]; No filter [1] ");
+            scanf ("%1d", &grid_val);
+            getchar();
+        } while ((grid_val < 3 || grid_val > 9) && grid_val != 1 && grid_val != 0);
+    } while (grid_val != 0);
+}
+
+void rules () {
+    system("clear");
+    getchar ();
+    printf ("> Rules\n\n");
+    printf ("Delete numbers on the table by moving the pointer.\n");
+    printf ("That's all you need to know\n");
+    getchar ();
+}
+
 // print matrix
 void printm () {
     int i, j;