diff --git a/bin/bhi.exe b/bin/bhi.exe
index baeb207..c53fca8 100644
Binary files a/bin/bhi.exe and b/bin/bhi.exe differ
diff --git a/gameover.c b/gameover.c
index eb22ede..08a87e4 100644
--- a/gameover.c
+++ b/gameover.c
@@ -22,6 +22,10 @@
 #define GAMEOVER_HUDScale           16.0f
 #define GAMEOVER_Scale              4.0f
 
+extern char Username[50];
+extern char Password[50];
+extern bool LoggedIn;
+
 extern int width, height;
 
 int GAMEOVER_HUDMargin = 5;
@@ -94,18 +98,19 @@ void GAMEOVER_Initialize(SDL_Renderer * renderer){
         printf("Gameover already initialized!\n");
 } /* GAMEOVER_Initialize */
 
-void GAMEOVER_MouseClicked(SDL_MouseButtonEvent b){
+void GAMEOVER_MouseClicked(SDL_MouseButtonEvent b, Scenery * scenery){
     if (b.button == SDL_BUTTON_LEFT) {
-        if (GAMEOVER_UploadState == Initial || GAMEOVER_UploadState == Failed) {
-            if (clickInRect(b, (GAMEOVER_UploadTargetRects + GAMEOVER_UploadState))) {
-                GAMEOVER_UploadState = Uploading;
-                if (HIGHSCORES_UploadScore("TestUser", 244)) {
-                    GAMEOVER_UploadState = Finished;
-                } else {
-                    GAMEOVER_UploadState = Failed;
+        if (LoggedIn)
+            if (GAMEOVER_UploadState == Initial || GAMEOVER_UploadState == Failed) {
+                if (clickInRect(b, (GAMEOVER_UploadTargetRects + GAMEOVER_UploadState))) {
+                    GAMEOVER_UploadState = Uploading;
+                    if (HIGHSCORES_UploadScore(Username, (scenery->Score))) {
+                        GAMEOVER_UploadState = Finished;
+                    } else {
+                        GAMEOVER_UploadState = Failed;
+                    }
                 }
             }
-        }
     }
 }
 
@@ -130,7 +135,8 @@ void GAMEOVER_Draw(SDL_Renderer * renderer, Scenery * scenery){
         SDL_RenderCopy(renderer, GAMEOVER_Numbers, (GAMEOVER_NumberRects + GAMEOVER_Digits[i]), &target);
         xOffset += target.w - 1;
     }
-    GAMEOVER_DrawHorizontalCenter(renderer, GAMEOVER_UploadTexture, (GAMEOVER_UploadRects + GAMEOVER_UploadState), (GAMEOVER_UploadTargetRects + GAMEOVER_UploadState));
+    if (LoggedIn)
+        GAMEOVER_DrawHorizontalCenter(renderer, GAMEOVER_UploadTexture, (GAMEOVER_UploadRects + GAMEOVER_UploadState), (GAMEOVER_UploadTargetRects + GAMEOVER_UploadState));
 } /* GAMEOVER_Draw */
 
 void GAMEOVER_DrawHorizontalCenter(SDL_Renderer * renderer, SDL_Texture * texture, SDL_Rect * srcRect, SDL_Rect * dstRect){
diff --git a/gameover.h b/gameover.h
index 2f348a9..ac50e2f 100644
--- a/gameover.h
+++ b/gameover.h
@@ -20,7 +20,7 @@ typedef enum uploadStateEnum { Initial = 0, Uploading = 1, Finished = 2, Failed
 
 // Prototypes
 void GAMEOVER_Initialize(SDL_Renderer * renderer);
-void GAMEOVER_MouseClicked(SDL_MouseButtonEvent b);
+void GAMEOVER_MouseClicked(SDL_MouseButtonEvent b, Scenery * scenery);
 void GAMEOVER_Draw(SDL_Renderer * renderer, Scenery * scenery);
 void GAMEOVER_DrawHorizontalCenter(SDL_Renderer * renderer, SDL_Texture * texture, SDL_Rect * srcRect, SDL_Rect * dstRect);
 void GAMEOVER_GetDigits(int input, int * digitCount);
diff --git a/highscores.c b/highscores.c
index 56da867..c5d3dca 100644
--- a/highscores.c
+++ b/highscores.c
@@ -58,7 +58,6 @@ void HIGHSCORES_Draw(SDL_Renderer * renderer){
 void HIGHSCORES_Deinitialize(){
     printf("De-initializing Highscores...\n");
     TTF_CloseFont(HIGHSCORES_FontFamily);
-    HIGHSCORES_FontFamily = NULL; // to be safe...
     SDL_DestroyTexture(HIGHSCORES_TableTexture);
     SDL_FreeSurface(tempSurface);
     free(HIGHSCORES_UserList);
@@ -112,10 +111,10 @@ bool HIGHSCORES_UploadScore(char * username, int score){
     char * name, * scorestring;
 
     sprintf(buffer, "bhi upload %s %s %d", HIGHSCORES_OutputFilePath, username, score);
-    printf("BHI called with \"%s\"\n", buffer);
-    printf("Call BHI interface:\n");
+    // printf("BHI called with \"%s\"\n", buffer);
+    // printf("Call BHI interface:\n");
     system(buffer);
-    printf("BHI interface quit!\nBHI output handling...\n");
+    // printf("BHI interface quit!\nBHI output handling...\n");
     FILE * fp = fopen(HIGHSCORES_OutputFilePath, "r");
     if (fp == NULL) {
         fclose(fp);
@@ -130,10 +129,70 @@ bool HIGHSCORES_UploadScore(char * username, int score){
     return true;
 } /* HIGHSCORES_UploadScore */
 
+bool HIGHSCORES_Login(char * username, char * password){
+    char buffer[200];
+    char * line = NULL;
+    size_t len = 0;
+    ssize_t read;
+
+    sprintf(buffer, "bhi login %s %s %s", HIGHSCORES_OutputFilePath, username, password);
+    // printf("BHI called with \"%s\"\n", buffer);
+    printf("Logging in...\n");
+    system(buffer);
+    // printf("BHI interface quit!\nBHI output handling...\n");
+    FILE * fp = fopen(HIGHSCORES_OutputFilePath, "r");
+    if (fp == NULL) {
+        fclose(fp);
+        printf("Login failed: Output file \"%s\" not found!\n", HIGHSCORES_OutputFilePath);
+        return false;
+    }
+    if ((read = getline(&line, &len, fp)) != -1) {
+        if (line[0] == '0') {
+            // if ((read = getline(&line, &len, fp)) != -1) {
+            //     printf("Error: %s\n", line);
+            // }
+            fclose(fp);
+            return false;
+        }
+    }
+    fclose(fp);
+    return true;
+} /* HIGHSCORES_Login */
+
+bool HIGHSCORES_Register(char * username, char * password){
+    char buffer[200];
+    char * line = NULL;
+    size_t len = 0;
+    ssize_t read;
+
+    sprintf(buffer, "bhi register %s %s %s", HIGHSCORES_OutputFilePath, username, password);
+    // printf("BHI called with \"%s\"\n", buffer);
+    printf("Registering...\n");
+    system(buffer);
+    // printf("BHI interface quit!\nBHI output handling...\n");
+    FILE * fp = fopen(HIGHSCORES_OutputFilePath, "r");
+    if (fp == NULL) {
+        fclose(fp);
+        printf("Login failed: Output file \"%s\" not found!\n", HIGHSCORES_OutputFilePath);
+        return false;
+    }
+    if ((read = getline(&line, &len, fp)) != -1) {
+        if (line[0] == '0') {
+            if ((read = getline(&line, &len, fp)) != -1) {
+                printf("Error: %s\n", line);
+            }
+            fclose(fp);
+            return false;
+        }
+    }
+    fclose(fp);
+    return true;
+} /* HIGHSCORES_Login */
+
 void HIGHSCORES_ReloadList(){
     printf("Call BHI interface:\n");
     system("bhi top output.txt");
-    printf("BHI interface quit!\nBHI output handling...\n");
+    // printf("BHI interface quit!\nBHI output handling...\n");
 
     HIGHSCORES_EntriesGot = 0;
     FILE * fp;
@@ -145,8 +204,10 @@ void HIGHSCORES_ReloadList(){
     bool switchread = false;
     HIGHSCORES_UserList = malloc(10 * sizeof(User));
     fp = fopen("output.txt", "r");
-    if (fp == NULL)
+    if (fp == NULL) {
+        printf("Reload failed: Output file \"%s\" not found!\n", HIGHSCORES_OutputFilePath);
         return;
+    }
     if ((read = getline(&line, &len, fp)) != -1)
         if (line[0] == '0')
             return;
diff --git a/highscores.h b/highscores.h
index 75ae4e9..eea45dd 100644
--- a/highscores.h
+++ b/highscores.h
@@ -15,6 +15,8 @@ void HIGHSCORES_Deinitialize();
 void HIGHSCORES_GenerateTexture(SDL_Renderer * renderer);
 void HIGHSCORES_DrawText(char * text, SDL_Rect * Message_rect);
 bool HIGHSCORES_UploadScore(char * username, int score);
+bool HIGHSCORES_Login(char * username, char * password);
+bool HIGHSCORES_Register(char * username, char * password);
 void HIGHSCORES_ReloadList();
 // End Prototypes
 
diff --git a/main.c b/main.c
index 7488ed7..42525ae 100644
--- a/main.c
+++ b/main.c
@@ -41,7 +41,7 @@ char Username[50];
 char Password[50];
 
 int main(int argc, char * args[]){
-    // AttemptLogin();
+    AttemptLogin();
     INITIALIZE();
     Uint32 fps_lasttime = SDL_GetTicks(); // the last recorded time.
     Uint32 fps_current; // the current FPS.
@@ -88,8 +88,75 @@ int main(int argc, char * args[]){
 } /* main */
 
 void AttemptLogin(){
+    int state;
+    bool loginSuccess = false;
 
-}
+    do {
+        system("cls");
+        printf("If you want to upload your score to the scoreboard you need to login! Enter\n\t- 1 for logging in with an existing account\n\t- 2 for creating a new account\n\t- 3 for playing unranked\n");
+        state = readIntFromIO("Input>", "Invalid input! Awaited a number from 1 to 3.\n", "%d is not a valid mode!\n", 1, 3);
+        switch (state) {
+            case 1:
+                printf("Log-In:\nInput your username: ");
+                gets(Username);
+                printf("Input your password: ");
+                gets(Password);
+                loginSuccess = HIGHSCORES_Login(Username, Password);
+                if (loginSuccess)
+                    printf("Successfully logged in as %s!\n", Username);
+                else
+                    printf("Login failed!\n");
+                break;
+            case 2:
+                printf("Register:\nInput a username: ");
+                gets(Username);
+                printf("Input a password: ");
+                gets(Password);
+                loginSuccess = HIGHSCORES_Register(Username, Password);
+                if (loginSuccess)
+                    printf("Successfully registered new account: %s!\n", Username);
+                else
+                    printf("Registration failed!\n");
+                break;
+            case 3:
+                printf("Skipping login!");
+                LoggedIn = false;
+                loginSuccess = true;
+                break;
+            default:
+                printf("This should not happen! State is %d...\n", state);
+                LoggedIn = false;
+                loginSuccess = false;
+                break;
+        } /* switch */
+        if (!loginSuccess) system("pause");
+    } while (!loginSuccess);
+} /* AttemptLogin */
+
+int readIntFromIO(char * m1, char * m2, char * m3, int min, int max){
+    int nitems, num;
+
+    while (1) {
+        while (1) {
+            printf(m1);
+            nitems = scanf("%d", &num);
+            if (nitems == 0) {
+                printf(m2);
+                fflush(stdin);
+                continue;
+            } else {
+                break;
+            }
+        }
+        if ((num < min) || (num > max)) {
+            printf(m3, num);
+        } else {
+            break;
+        }
+    }
+    fflush(stdin);
+    return(num);
+} /* readIntFromIO */
 
 void GAME_Escape(){
     running = false;
@@ -167,7 +234,7 @@ void HandleSDLEvents(){
 void mousePress(SDL_MouseButtonEvent b){ // Debug prop
     switch (gameState) {
         case GameOver:
-            GAMEOVER_MouseClicked(b);
+            GAMEOVER_MouseClicked(b, &scenery);
             break;
         default:
             printf("Gamestate currently ignores Mouse press event: %d!\n", gameState);
@@ -223,7 +290,7 @@ void DrawBackground(SDL_Renderer * renderer){
     SDL_RenderClear(renderer);
 } /* DrawFrame */
 
-void INITIALIZE() {
+void INITIALIZE(){
     printf("Initializing started...\n");
     srand(time(NULL));
     if (SDL_Init(SDL_INIT_EVERYTHING) != 0) printf("SDL could not initialize! Error: %s\n", SDL_GetError());
diff --git a/main.h b/main.h
index a66139c..3eacf8f 100644
--- a/main.h
+++ b/main.h
@@ -29,6 +29,8 @@
 #define ss "\341"
 
 // Prototypes
+void AttemptLogin();
+int readIntFromIO(char * m1, char * m2, char * m3, int min, int max);
 void GAME_Escape();
 void MENU_StartMusic();
 void MENU_PauseMusic();
@@ -39,7 +41,7 @@ void keyPress(SDL_KeyboardEvent b);
 void toggleFullscreen();
 void windowChanged(SDL_WindowEvent b);
 void DrawBackground(SDL_Renderer * renderer);
-void INITIALIZE() ;
+void INITIALIZE();
 void QUIT();
 // End Prototypes