diff --git a/lib/game_clock/net/client.rb b/lib/game_clock/net/client.rb
index e4d9dcf..bca2901 100644
--- a/lib/game_clock/net/client.rb
+++ b/lib/game_clock/net/client.rb
@@ -129,7 +129,7 @@ module TAC
           end
 
 
-          return message.strip
+          return message.to_s.strip
         end
 
         def puts(message)
diff --git a/lib/game_clock/view.rb b/lib/game_clock/view.rb
index eef790f..249d59e 100644
--- a/lib/game_clock/view.rb
+++ b/lib/game_clock/view.rb
@@ -10,7 +10,7 @@ module TAC
         @escape_counter = 0
 
         @background_image = get_image("#{ROOT_PATH}/media/background.png")
-        # Preload duck image since Gosu and windows threads don't get along with OpenGL (image is blank if loaded in a threaded context)
+        # Preload duck image since Gosu and Windows threads don't get along with OpenGL (image is blank if loaded in a threaded context)
         get_image("#{ROOT_PATH}/media/openclipart_ducky.png")
         @menu_background = 0xaa004000
         @mouse = Mouse.new(window)
@@ -25,6 +25,10 @@ module TAC
 
         @last_clock_state = @clock.active?
 
+        @locked_buttons_randomizer_visible = []
+        @locked_buttons_clock_active  = []
+        @randomizer_visible = false
+
         theme(THEME)
 
         @menu_container = flow width: 1.0 do
@@ -32,28 +36,45 @@ module TAC
             background @menu_background
 
             title "Match", width: 1.0, text_align: :center
-            button "Start Match", width: 1.0, margin_bottom: 50 do
+            @start_match_btn = button "Start Match", width: 1.0, margin_bottom: 50 do |btn|
+              @locked_buttons_clock_active << btn
+              @locked_buttons_randomizer_visible << btn
+
               @clock_proxy.start_clock(:full_match)
             end
 
             title "Practice", width: 1.0, text_align: :center
-            button "Autonomous", width: 1.0 do
+            @autonomous_btn = button "Autonomous", width: 1.0 do |btn|
+              @locked_buttons_clock_active << btn
+              @locked_buttons_randomizer_visible << btn
+
               @clock_proxy.start_clock(:autonomous)
             end
 
-            button "TeleOp with Countdown", width: 1.0 do
+            @teleop_with_countdown_btn = button "TeleOp with Countdown", width: 1.0 do |btn|
+              @locked_buttons_clock_active << btn
+              @locked_buttons_randomizer_visible << btn
+
               @clock_proxy.start_clock(:full_teleop)
             end
 
-            button "TeleOp", width: 1.0 do
+            @teleop_btn = button "TeleOp", width: 1.0 do |btn|
+              @locked_buttons_clock_active << btn
+              @locked_buttons_randomizer_visible << btn
+
               @clock_proxy.start_clock(:teleop_only)
             end
 
-            button "TeleOp Endgame", width: 1.0 do
+            @teleop_endgame_btn = button "TeleOp Endgame", width: 1.0 do |btn|
+              @locked_buttons_clock_active << btn
+              @locked_buttons_randomizer_visible << btn
+
               @clock_proxy.start_clock(:endgame_only)
             end
 
-            button "Abort Match", width: 1.0, margin_top: 50 do
+            @abort_match_btn = button "Abort Match", width: 1.0, margin_top: 50 do |btn|
+              @locked_buttons_randomizer_visible << btn
+
               @clock_proxy.abort_clock
             end
 
@@ -139,7 +160,7 @@ module TAC
             end
 
             stack(width: 1.0) do
-              button "Randomizer", width: 1.0, **TAC::THEME_DANGER_BUTTON do
+              @randomizer_btn = button "Randomizer", width: 1.0, **TAC::THEME_DANGER_BUTTON do |btn|
                 unless @clock.active?
                   push_state(Randomizer)
                 end
@@ -148,6 +169,24 @@ module TAC
           end
         end
 
+        @locked_buttons_clock_active.push(
+          @start_match_btn,
+          @autonomous_btn,
+          @teleop_with_countdown_btn,
+          @teleop_btn,
+          @teleop_endgame_btn,
+          @randomizer_btn
+        )
+
+        @locked_buttons_randomizer_visible.push(
+          @start_match_btn,
+          @autonomous_btn,
+          @teleop_with_countdown_btn,
+          @teleop_btn,
+          @teleop_endgame_btn,
+          @abort_match_btn
+        )
+
         @jukebox = Jukebox.new(@clock)
 
         @clock_proxy = ClockProxy.new(@clock, @jukebox)
@@ -191,6 +230,8 @@ module TAC
             @menu_container.hide if @menu_container.visible?
             window.show_cursor = false
           end
+
+          manage_button_enablement
         end
 
         if @clock.value != @last_clock_display_value
@@ -222,9 +263,9 @@ module TAC
         @last_clock_state = @clock.active?
       end
 
-      def request_repaint
+      def needs_repaint?
         if @particle_emitters && @particle_emitters.map(&:particle_count).sum.positive?
-          true
+          @needs_repaint = true
         else
           super
         end
@@ -241,6 +282,22 @@ module TAC
         @jukebox.update
       end
 
+      def manage_button_enablement
+        if @randomizer_visible
+          @locked_buttons_randomizer_visible.each do |btn|
+            btn.enabled = false
+          end
+        elsif @clock.active?
+          @locked_buttons_clock_active.each do |btn|
+            btn.enabled = false
+          end
+        else
+          (@locked_buttons_clock_active + @locked_buttons_randomizer_visible).uniq.each do |btn|
+            btn.enabled = true
+          end
+        end
+      end
+
       def button_down(id)
         super
 
@@ -274,6 +331,8 @@ module TAC
       end
 
       def randomizer_changed(boolean)
+        @randomizer_visible = boolean
+
         if boolean
           push_state(Randomizer) unless @clock.active?
         else
diff --git a/lib/pages/field_planner.rb b/lib/pages/field_planner.rb
index 07e824e..0da8884 100644
--- a/lib/pages/field_planner.rb
+++ b/lib/pages/field_planner.rb
@@ -38,7 +38,7 @@ module TAC
               refresh_panel
             end
 
-            list_box items: ["Power Play", "Freight Frenzy", "Ultimate Goal", "Skystone"], width: 200, height: 1.0 do |item|
+            list_box items: ["CENTERSTAGE", "Power Play", "Freight Frenzy", "Ultimate Goal", "Skystone"], width: 200, height: 1.0 do |item|
               season = item.downcase.gsub(" ", "_").to_sym
               @field = TAC::Simulator::Field.new(container: @field_container, season: season, simulation: nil)
             end
@@ -68,7 +68,7 @@ module TAC
           end
         end
 
-        @field = TAC::Simulator::Field.new(container: @field_container, season: :power_play, simulation: nil)
+        @field = TAC::Simulator::Field.new(container: @field_container, season: :centerstage, simulation: nil)
         @nodes ||= []
         @unit = :inches
         @total_distance = 0
diff --git a/lib/simulator/field.rb b/lib/simulator/field.rb
index 7b100e4..6169c06 100644
--- a/lib/simulator/field.rb
+++ b/lib/simulator/field.rb
@@ -336,6 +336,10 @@ module TAC
         end
       end
 
+      def draw_field_centerstage
+
+      end
+
       def draw_tile_box(color)
         Gosu.draw_rect(0,  0, 24, 2, color, @z)
         Gosu.draw_rect(22, 2, 2, 22, color, @z)
diff --git a/lib/simulator/simulation.rb b/lib/simulator/simulation.rb
index e1f4aa9..820d580 100644
--- a/lib/simulator/simulation.rb
+++ b/lib/simulator/simulation.rb
@@ -8,7 +8,7 @@ module TAC
         @field_container = field_container
 
         @robots = []
-        @field = Field.new(simulation: self, season: :power_play, container: @field_container)
+        @field = Field.new(simulation: self, season: :centerstage, container: @field_container)
         @show_paths = false
 
         @last_milliseconds = Gosu.milliseconds