diff --git a/main.lua b/main.lua
index a4441fd..8c5dbf1 100644
--- a/main.lua
+++ b/main.lua
@@ -293,68 +293,15 @@ local function find_unattached_bubbles()
   return unattached
 end
 
-function love.load(arg)
-  if arg[#arg] == "debug" then require("lldebugger").start() end
-
-  game.window_width, game.window_height = love.graphics.getDimensions()
-  game.window_center_x = game.window_width / 2
-  game.window_center_y = game.window_height / 2
-
-  game.score_font = love.graphics.setNewFont(50)
-  game.points_font = love.graphics.newFont(30)
-
-  game.game_over_image = love.graphics.newImage('images/game_over.png')
+local function start_level()
   game.game_over = false
-  game.fade_to_grey = {time = 0, duration = 120, progress = 0.0}
   game.paused = false
+  game.fade_to_grey = {time = 0, duration = 120, progress = 0.0}
   game.frame_by_frame = false
-
-  game.bubble_diameter = 60
-  game.bubble_radius = game.bubble_diameter / 2
-  game.bubble_speed = 960 * delta_time -- 960 px/s
-
-  -- vertical distance between bubble center points
-  game.row_gap = math.ceil(math.sqrt(
-    (game.bubble_diameter * game.bubble_diameter) -
-    (game.bubble_radius * game.bubble_radius)
-  ))
-
-  game.background_image = love.graphics.newImage('images/background.png')
-  game.background_width = game.background_image:getWidth()
-
-  game.bubble_images = {
-    love.graphics.newImage('images/red.png'),    -- 1
-    love.graphics.newImage('images/orange.png'), -- 2
-    love.graphics.newImage('images/yellow.png'), -- 3
-    love.graphics.newImage('images/green.png'),  -- 4
-    love.graphics.newImage('images/blue.png'),   -- 5
-    love.graphics.newImage('images/purple.png'), -- 6
-    love.graphics.newImage('images/pink.png'),   -- 7
-    love.graphics.newImage('images/white.png')   -- 8
-  }
-
+  game.frame_counter = 0
+  game.timer = 0
   game.score = 0
   game.points_display = {}
-
-  game.levels = {}
-  game.levels[1] = {
-    {1,1,1,3,3,2,2,2},
-    { 1,1,3,3,3,2,2 },
-    {4,4,7,8,8,6,5,5},
-    { 4,7,7,8,6,6,5 },
-    {0,0,0,0,0,0,0,0},
-    { 0,0,0,0,0,0,0 },
-    {0,0,0,0,0,0,0,0},
-    { 0,0,0,0,0,0,0 },
-    {0,0,0,0,0,0,0,0},
-    { 0,0,0,0,0,0,0 },
-    {0,0,0,0,0,0,0,0},
-    { 0,0,0,0,0,0,0 },
-    {0,0,0,0,0,0,0,0},
-    { 0,0,0,0,0,0,0 }
-  }
-  game.current_level = 1
-
   game.bubbles_launched = 0
   game.ceiling_drops_after = 5
   game.ceiling_drop_tween = nil
@@ -381,17 +328,10 @@ function love.load(arg)
     game.bubble_slots[i].y = game.bubble_slots[i].y + game.ceiling_bottom
   end
 
-  game.launcher_image = love.graphics.newImage('images/launcher.png')
-  game.launcher_height = game.launcher_image:getHeight()
-  game.launcher_width = game.launcher_image:getWidth()
   game.launcher_x = game.window_width / 2
   game.launcher_y = game.level_top + game.level_height + game.bubble_diameter
-  game.launcher_offset_x = 90 -- rotation point in launcher image
-  game.launcher_offset_y = game.launcher_height / 2
   game.launcher_rotation = -tau / 4 -- up
 
-  game.show_aim_guide = true
-  game.aim_guide = {}
   local total_bubble_count, counts_by_type = get_bubble_counts()
   local bubble_types = {}
   for bubble_type, count in pairs(counts_by_type) do
@@ -408,8 +348,75 @@ function love.load(arg)
   }
   game.next_bubble_type = get_next_bubble_type(2, bubble_types)
 
+  game.show_aim_guide = true
+  game.aim_guide = {}
+  generate_aim_guide(game.window_width / 2, game.window_height / 2)
+
   game.bursting_bubbles = {}
   game.falling_bubbles = {}
+end
+
+function love.load(arg, unfiltered_arg)
+  if arg[#arg] == "debug" then require("lldebugger").start() end
+
+  game.window_width, game.window_height = love.graphics.getDimensions()
+  game.window_center_x = game.window_width / 2
+  game.window_center_y = game.window_height / 2
+
+  game.score_font = love.graphics.setNewFont(50)
+  game.points_font = love.graphics.newFont(30)
+
+  game.game_over_image = love.graphics.newImage('images/game_over.png')
+
+  game.bubble_diameter = 60
+  game.bubble_radius = game.bubble_diameter / 2
+  game.bubble_speed = 960 * delta_time -- 960 px/s = 8 px/frame
+
+  -- vertical distance between bubble center points
+  game.row_gap = math.ceil(math.sqrt(
+    (game.bubble_diameter * game.bubble_diameter) -
+    (game.bubble_radius * game.bubble_radius)
+  ))
+
+  game.background_image = love.graphics.newImage('images/background.png')
+  game.background_width = game.background_image:getWidth()
+
+  game.bubble_images = {
+    love.graphics.newImage('images/red.png'),    -- 1
+    love.graphics.newImage('images/orange.png'), -- 2
+    love.graphics.newImage('images/yellow.png'), -- 3
+    love.graphics.newImage('images/green.png'),  -- 4
+    love.graphics.newImage('images/blue.png'),   -- 5
+    love.graphics.newImage('images/purple.png'), -- 6
+    love.graphics.newImage('images/pink.png'),   -- 7
+    love.graphics.newImage('images/white.png')   -- 8
+  }
+
+  game.levels = {}
+  game.levels[1] = {
+    {1,1,1,3,3,2,2,2},
+    { 1,1,3,3,3,2,2 },
+    {4,4,7,8,8,6,5,5},
+    { 4,7,7,8,6,6,5 },
+    {0,0,0,0,0,0,0,0},
+    { 0,0,0,0,0,0,0 },
+    {0,0,0,0,0,0,0,0},
+    { 0,0,0,0,0,0,0 },
+    {0,0,0,0,0,0,0,0},
+    { 0,0,0,0,0,0,0 },
+    {0,0,0,0,0,0,0,0},
+    { 0,0,0,0,0,0,0 },
+    {0,0,0,0,0,0,0,0},
+    { 0,0,0,0,0,0,0 }
+  }
+  game.current_level = 1
+
+  game.launcher_image = love.graphics.newImage('images/launcher.png')
+  game.launcher_height = game.launcher_image:getHeight()
+  game.launcher_width = game.launcher_image:getWidth()
+  game.launcher_offset_x = 90 -- rotation point in launcher image
+  game.launcher_offset_y = game.launcher_height / 2
+
 
   game.shader = love.graphics.newShader [[
     uniform float progress;
@@ -423,6 +430,8 @@ function love.load(arg)
       return pixel;
     }
   ]]
+
+  start_level()
 end
 
 function love.update(dt)
@@ -891,7 +900,11 @@ function love.draw(alpha)
 end
 
 function love.mousepressed(x, y, button, is_touch, presses)
-  if not game.game_over and button == 1 and game.current_bubble and
+  if game.game_over then
+    start_level()
+    return
+  end
+  if button == 1 and game.current_bubble and
      game.current_bubble.x == game.launcher_x and
      game.current_bubble.y == game.launcher_y and
      game.current_bubble.velocity_x == 0 and
@@ -931,6 +944,8 @@ end
 function love.keypressed(key, scan_code, is_repeat)
   if key == 'escape' then
     love.event.quit()
+  elseif game.game_over or key == 'r' then
+    start_level()
   elseif key == 'space' then
     game.paused = not game.paused
   elseif key == 'n' and game.paused then