diff --git a/Makefile b/Makefile
index 336e4de..75d1b4b 100644
--- a/Makefile
+++ b/Makefile
@@ -333,6 +333,7 @@ build/src/menu/new_game_menu.o: build/src/audio/clips.h build/assets/materials/u
 build/src/menu/options_menu.o: build/assets/materials/ui.h
 build/src/menu/save_game_menu.o: build/src/audio/clips.h
 build/src/scene/scene_animator.o: build/src/audio/clips.h
+build/src/menu/cheat_codes.o: build/src/audio/clips.h
 build/src/levels/intro.o: build/src/audio/clips.h build/assets/materials/images.h
 build/src/menu/savefile_list.o: build/assets/materials/ui.h build/src/audio/clips.h
 build/src/font/dejavusans_images.o: build/assets/materials/ui.h
diff --git a/README.md b/README.md
index 886ec06..fda2c96 100644
--- a/README.md
+++ b/README.md
@@ -211,6 +211,8 @@ That will generate the rom at `/build/portal64.z64`
 <br />
 
 ## Current New Feature TODO List
+- [ ] add translations to menus
+- [ ] check if display list is long enough 
 - [ ] pausing while glados is speaking can end her speech early
 - [x] jump animation
 - [x] optimize static culling
diff --git a/src/menu/cheat_codes.c b/src/menu/cheat_codes.c
new file mode 100644
index 0000000..1cc03d1
--- /dev/null
+++ b/src/menu/cheat_codes.c
@@ -0,0 +1,48 @@
+#include "cheat_codes.h"
+
+#include "../build/src/audio/clips.h"
+#include "../audio/soundplayer.h"
+#include "../scene/scene.h"
+
+struct CheatCodePattern gCheatCodes[CheatCodeCount] = {
+    [CheatCodeUnlockGun] = {
+        {'u', 'u', 'd', 'd', 'l', 'r', 'l', 'r'},
+        SOUNDS_01_PART1_GET_PORTAL_GUN_1,
+    },
+};
+
+unsigned char gCheatProgress[CheatCodeCount];
+
+void cheatCodeReset() {
+    for (int i = 0; i < CheatCodeCount; ++i) {
+        gCheatProgress[i] = 0;
+    }
+}
+
+void cheatCodeApply(enum CheatCode cheat) {
+    switch (cheat) {
+        case CheatCodeUnlockGun:
+            playerGivePortalGun(&gScene.player, PlayerHasFirstPortalGun | PlayerHasSecondPortalGun);
+            break;
+        case CheatCodeCount:
+            break;
+    }
+}
+
+void cheatCodeEnterDirection(enum CheatCodeDir dir) {
+    for (int i = 0; i < CheatCodeCount; ++i) {
+        if (gCheatCodes[i].pattern[gCheatProgress[i]] == dir) {
+            ++gCheatProgress[i];
+
+            if (gCheatProgress[i] == CHEAT_CODE_LENGTH) {
+                cheatCodeApply(i);
+                soundPlayerPlay(gCheatCodes[i].soundId, 1.0f, 0.5f, NULL, NULL, SoundTypeAll);
+                gCheatProgress[i] = 0;
+            }
+        } else if (gCheatCodes[i].pattern[0] == dir) {
+            gCheatProgress[i] = 1;
+        } else {
+            gCheatProgress[i] = 0;
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/menu/cheat_codes.h b/src/menu/cheat_codes.h
new file mode 100644
index 0000000..85fd929
--- /dev/null
+++ b/src/menu/cheat_codes.h
@@ -0,0 +1,26 @@
+#ifndef __MENU_CHEAT_CODES_H__
+#define __MENU_CHEAT_CODES_H__
+
+#define CHEAT_CODE_LENGTH   8
+
+enum CheatCode {
+    CheatCodeUnlockGun,
+    CheatCodeCount,
+};
+
+enum CheatCodeDir {
+    CheatCodeDirUp = 'u',
+    CheatCodeDirRight = 'r',
+    CheatCodeDirDown = 'd',
+    CheatCodeDirLeft = 'l',
+};
+
+struct CheatCodePattern {
+    char pattern[CHEAT_CODE_LENGTH];
+    short soundId;
+};
+
+void cheatCodeReset();
+void cheatCodeEnterDirection(enum CheatCodeDir dir);
+
+#endif
\ No newline at end of file
diff --git a/src/menu/landing_menu.c b/src/menu/landing_menu.c
index 08cddad..d69b801 100644
--- a/src/menu/landing_menu.c
+++ b/src/menu/landing_menu.c
@@ -8,6 +8,7 @@
 
 #include "../build/assets/materials/ui.h"
 #include "../build/src/audio/clips.h"
+#include "cheat_codes.h"
 
 #define PORTAL_LOGO_X   30
 #define PORTAL_LOGO_Y   74
@@ -71,22 +72,36 @@ void landingMenuInit(struct LandingMenu* landingMenu, struct LandingMenuOption*
 }
 
 struct LandingMenuOption* landingMenuUpdate(struct LandingMenu* landingMenu) {
-    if ((controllerGetDirectionDown(0) & ControllerDirectionUp) != 0) {
+    enum ControllerDirection dir = controllerGetDirectionDown(0);
+
+    if (dir & ControllerDirectionUp) {
         if (landingMenu->selectedItem > 0) {
             --landingMenu->selectedItem;
         } else { 
             landingMenu->selectedItem = landingMenu->optionCount - 1;
         }
         soundPlayerPlay(SOUNDS_BUTTONROLLOVER, 1.0f, 0.5f, NULL, NULL, SoundTypeAll);
+
+        cheatCodeEnterDirection(CheatCodeDirUp);
     }
 
-    if ((controllerGetDirectionDown(0) & ControllerDirectionDown) != 0) {
+    if (dir & ControllerDirectionDown) {
         if (landingMenu->selectedItem + 1 < landingMenu->optionCount) {
             ++landingMenu->selectedItem;
         } else {
             landingMenu->selectedItem = 0;
         }
         soundPlayerPlay(SOUNDS_BUTTONROLLOVER, 1.0f, 0.5f, NULL, NULL, SoundTypeAll);
+
+        cheatCodeEnterDirection(CheatCodeDirDown);
+    }
+
+    if (dir & ControllerDirectionLeft) {
+        cheatCodeEnterDirection(CheatCodeDirLeft);
+    }
+
+    if (dir & ControllerDirectionRight) {
+        cheatCodeEnterDirection(CheatCodeDirRight);
     }
 
     if (controllerGetButtonDown(0, A_BUTTON)) {
diff --git a/src/scene/scene.c b/src/scene/scene.c
index 4b0e400..4daead0 100644
--- a/src/scene/scene.c
+++ b/src/scene/scene.c
@@ -50,8 +50,6 @@ Lights1 gSceneLights = gdSPDefLights1(128, 128, 128, 128, 128, 128, 0, 127, 0);
 #define LEVEL_INDEX_WITH_GUN_0  2
 #define LEVEL_INDEX_WITH_GUN_1  8
 
-#define FADE_IN_
-
 void sceneUpdateListeners(struct Scene* scene);
 
 void sceneInitDynamicColliders(struct Scene* scene) {