Added a difficulty badge when going to play a replayable level.

app/styles/play/campaign-view.sass

@@ -243,6 +243,21 @@ $gameControlMargin: 30px
           min-width: 200px
           display: block
           margin: 10px auto 0 auto
+          position: relative
+
+          .badge
+            position: absolute
+            top: initial
+            left: initial
+            right: -25px
+            bottom: -25px
+            font-size: 20px
+            color: black
+            border: 1px solid black
+            background-color: rgb(232, 217, 87)
+            border-radius: 50%
+            opacity: 1
+            padding: 3px 9px
   
         &.complete
           .start-level, .view-solutions

app/views/play/CampaignView.coffee

@@ -286,9 +286,6 @@ module.exports = class CampaignView extends RootView
       @levelStatusMap[session.get('levelID')] = if session.get('state')?.complete then 'complete' else 'started'
     @render()
 
-  onClickMap: (e) ->
-    @$levelInfo?.hide()
-
   preloadLevel: (levelSlug) ->
     levelURL = "/db/level/#{levelSlug}"
     level = new Level().setURL levelURL
@@ -297,6 +294,18 @@ module.exports = class CampaignView extends RootView
     @preloadedSession = new LevelSession().setURL sessionURL
     @preloadedSession.levelSlug = levelSlug
     @preloadedSession.fetch()
+    @listenToOnce @preloadedSession, 'sync', @onSessionPreloaded
+
+  onSessionPreloaded: (session) ->
+    levelElement = @$el.find('.level-info-container:visible')
+    return unless session.levelSlug is levelElement.data 'level-slug'
+    return unless difficulty = session.get('state')?.difficulty
+    badge = $("<span class='badge'>#{difficulty}</span>")
+    levelElement.find('.start-level .badge').remove()
+    levelElement.find('.start-level').append badge
+
+  onClickMap: (e) ->
+    @$levelInfo?.hide()
 
   onClickLevel: (e) ->
     e.preventDefault()