diff --git a/src/framebuffer.cpp b/src/framebuffer.cpp
index 8c34c6b..9651d5e 100644
--- a/src/framebuffer.cpp
+++ b/src/framebuffer.cpp
@@ -12,7 +12,7 @@ SDL_Texture* texture = nullptr;
 
 #define FB_WIDTH 320
 #define FB_HEIGHT 200
-#define FB_SCALE 2
+#define FB_SCALE 4
 #define FB_OFFSET 0x10000
 
 Framebuffer::Framebuffer(UART& uart)
@@ -30,7 +30,8 @@ Framebuffer::Framebuffer(UART& uart)
 
 void Framebuffer::mainloop() {
   window = SDL_CreateWindow("rve Framebuffer", SDL_WINDOWPOS_CENTERED,
-                            SDL_WINDOWPOS_CENTERED, width, height, 0);
+                            SDL_WINDOWPOS_CENTERED, width * FB_SCALE,
+                            height * FB_SCALE, 0);
   if (!window) {
     throw std::runtime_error("Failed to create SDL window");
   }
@@ -79,6 +80,8 @@ void Framebuffer::mainloop() {
           asciiValue = 2;
         } else if (key == SDLK_RCTRL || key == SDLK_LCTRL) {
           asciiValue = 5;
+        } else if (key == SDLK_RALT || key == SDLK_LALT) {
+          asciiValue = 6;
         } else {
           valid_key = false;
         }