diff --git a/data/main.lua b/data/main.lua
index b90560b..21a8b12 100644
--- a/data/main.lua
+++ b/data/main.lua
@@ -22,6 +22,7 @@ function mini.init()
 
     rooms.init()
     shader.init("lynx.glsl")
+    shader.enable()
     --titles.enable()
     game.enable()
     --if sys.debug() then
diff --git a/data/stages/game.lua b/data/stages/game.lua
index 3ea678c..35a5db0 100644
--- a/data/stages/game.lua
+++ b/data/stages/game.lua
@@ -84,6 +84,12 @@ game = {
             editor.enable()
         elseif key.press(key.GRAVE) then
             console.enable()
+        elseif key.press(key.F1) then
+            win.zoom(win.zoom()-1)
+        elseif key.press(key.F2) then
+            win.zoom(win.zoom()+1)
+        elseif key.press(key.F3) then
+            win.fullscreen(not win.fullscreen())
         end
 
         --draw.text(sys.fps(),2,20,8)