diff --git a/js/common/RPALQueryParameters.js b/js/common/RPALQueryParameters.js
index 969d46d2..5898df1c 100644
--- a/js/common/RPALQueryParameters.js
+++ b/js/common/RPALQueryParameters.js
@@ -13,9 +13,6 @@ define( function( require ) {
 
   var RPALQueryParameters = QueryStringMachine.getAll( {
 
-    // shows  answers at the bottom of the Game screen, and adds 'Test', 'Skip', 'Replay' buttons
-    showAnswers: { type: 'flag' },
-
     // plays all reactions for each level of the game
     playAll: { type: 'flag' }
   } );
diff --git a/js/game/view/ChallengeNode.js b/js/game/view/ChallengeNode.js
index 27ee7baa..67fb102d 100644
--- a/js/game/view/ChallengeNode.js
+++ b/js/game/view/ChallengeNode.js
@@ -30,7 +30,6 @@ define( function( require ) {
   var RPALColors = require( 'REACTANTS_PRODUCTS_AND_LEFTOVERS/common/RPALColors' );
   var RPALConstants = require( 'REACTANTS_PRODUCTS_AND_LEFTOVERS/common/RPALConstants' );
   var RPALFont = require( 'REACTANTS_PRODUCTS_AND_LEFTOVERS/common/view/RPALFont' );
-  var RPALQueryParameters = require( 'REACTANTS_PRODUCTS_AND_LEFTOVERS/common/RPALQueryParameters' );
   var Text = require( 'SCENERY/nodes/Text' );
 
   // strings
@@ -302,7 +301,7 @@ define( function( require ) {
     //------------------------------------------------------------------------------------
 
     // The answer to the current challenge, bottom center
-    if ( RPALQueryParameters.showAnswers ) {
+    if ( phet.chipper.queryParameters.showAnswers ) {
       this.addChild( new Text( DevStringUtils.quantitiesString( reaction ), {
         fill: 'red',
         font: new RPALFont( 12 ),
diff --git a/js/game/view/PlayNode.js b/js/game/view/PlayNode.js
index bcc5b13d..01429209 100644
--- a/js/game/view/PlayNode.js
+++ b/js/game/view/PlayNode.js
@@ -20,7 +20,6 @@ define( function( require ) {
   var Node = require( 'SCENERY/nodes/Node' );
   var reactantsProductsAndLeftovers = require( 'REACTANTS_PRODUCTS_AND_LEFTOVERS/reactantsProductsAndLeftovers' );
   var RPALFont = require( 'REACTANTS_PRODUCTS_AND_LEFTOVERS/common/view/RPALFont' );
-  var RPALQueryParameters = require( 'REACTANTS_PRODUCTS_AND_LEFTOVERS/common/RPALQueryParameters' );
   var ScoreDisplayLabeledNumber = require( 'VEGAS/ScoreDisplayLabeledNumber' );
 
   /**
@@ -65,7 +64,7 @@ define( function( require ) {
     this.addChild( statusBar );
 
     // Developer controls at top-right, below status bar
-    if ( RPALQueryParameters.showAnswers ) {
+    if ( phet.chipper.queryParameters.showAnswers ) {
       this.addChild( new DevGameControls( model, {
         right: layoutBounds.right - 5,
         top: statusBar.bottom + 5
diff --git a/js/game/view/SettingsNode.js b/js/game/view/SettingsNode.js
index 944fd6a1..54617268 100644
--- a/js/game/view/SettingsNode.js
+++ b/js/game/view/SettingsNode.js
@@ -128,7 +128,7 @@ define( function( require ) {
     Node.call( this, options );
 
     // 'Test' button at top right, runs a sanity test on the challenge generator
-    if ( RPALQueryParameters.showAnswers && !RPALQueryParameters.playAll ) {
+    if ( phet.chipper.queryParameters.showAnswers && !RPALQueryParameters.playAll ) {
       var testButton = new TextPushButton( 'Test', {
         font: new RPALFont( 10 ),
         baseColor: 'red',