       ]
     }
     {
-      name: 'Use "Interrupt" Program to Bounce Off Walls'
+      name: 'Use "Interrupt" Program to Bounce Off Logs'
       comment: '
       Shows the power of reactive programming.
       Introduces concept of an interrupt handler.

        { kind: 'turtle', actions: {run: ['forward', 'right']}, editable: false }
      ]
    }
    {
      name: 'Click "Right" Program Brick to Remove It'
      comment: '

      ]
    }
    {
      name: 'Use Only Four Bricks to Move Diagonally'
      comment: '
      Create a multi-stage program.
      Can get top score by using run loop to avoid final "Forward"s
