diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5a18a24bf..3c7857a2f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -36,8 +36,8 @@
 * The `TIMELINE_LOOP_EVENT` has had the `loopCounter` argument removed from it. It didn't actually send the number of times the Timeline had looped (it actually sent the total remaining).
 * When a TweenData completes it will now set the `current` property to be exactly either `start` or `end` depending on playback direction.
 * When a TweenData completes it will set the exact `start` or `end` value into the target property.
-* `TweenData` has a new optional argument `getActive` which, if given, sets the property value immediately on activation.
-* `TweenData.getActiveValue` is a new property function that, if not null, returns a value to immediately sets the property value to on activation.
+* `TweenData` has a new function signature, with the new `index` and `getActive`arguments added to it. `TweenBuilder` has been updated to set these, but if you create any TweenData objects directly, use the new signature.
+* `TweenData.getActiveValue` is a new property that, if not null, returns a value to immediately sets the property value to on activation.
 * `GetEaseFunction`, and by extension anything that uses it, such as setting the ease for a Tween, will now accept a variety of input strings as valid. You can now use lower-case, such as `back`, and omit the 'ease' part of the direction, such as `back.in` or `back.inout`.
 * The signature of `getStart` and `getEnd` custom property functions has changed to `(target, key, value, targetIndex, totalTargets, tween)`, previously it was just `(target, key, value)`. Custom functions don't need to change as the new arguments are in addition to those sent previously.
 * The signature of the LoadValue generator functions (such as `delay` and `repeat`) has changed to `(target, key, value, targetIndex, totalTargets, tween)` to match those of the custom property functions. If you used a custom generator function for your Tween configs you'll need to modify the signature to the new one. As a result the `
diff --git a/src/tweens/builders/NumberTweenBuilder.js b/src/tweens/builders/NumberTweenBuilder.js
index 6766e4ad8..f5455b7df 100644
--- a/src/tweens/builders/NumberTweenBuilder.js
+++ b/src/tweens/builders/NumberTweenBuilder.js
@@ -63,9 +63,11 @@ var NumberTweenBuilder = function (parent, config, defaults)
 
     var tweenData = TweenData(
         targets[0],
+        0,
         'value',
         ops.getEnd,
         ops.getStart,
+        ops.getActive,
         ease,
         delay,
         duration,
diff --git a/src/tweens/builders/TweenBuilder.js b/src/tweens/builders/TweenBuilder.js
index c839e7a89..8949a99db 100644
--- a/src/tweens/builders/TweenBuilder.js
+++ b/src/tweens/builders/TweenBuilder.js
@@ -68,9 +68,11 @@ var TweenBuilder = function (parent, config, defaults)
 
             var tweenData = TweenData(
                 targets[t],
+                t,
                 key,
                 ops.getEnd,
                 ops.getStart,
+                ops.getActive,
                 GetEaseFunction(GetValue(value, 'ease', ease), easeParams),
                 GetNewValue(value, 'delay', delay),
                 GetNewValue(value, 'duration', duration),
@@ -79,8 +81,7 @@ var TweenBuilder = function (parent, config, defaults)
                 GetNewValue(value, 'repeat', repeat),
                 GetNewValue(value, 'repeatDelay', repeatDelay),
                 GetBoolean(value, 'flipX', flipX),
-                GetBoolean(value, 'flipY', flipY),
-                ops.getActive
+                GetBoolean(value, 'flipY', flipY)
             );
 
             data.push(tweenData);
diff --git a/src/tweens/tween/TweenData.js b/src/tweens/tween/TweenData.js
index 96fe898da..d7910b40c 100644
--- a/src/tweens/tween/TweenData.js
+++ b/src/tweens/tween/TweenData.js
@@ -14,10 +14,12 @@
  * @function Phaser.Tweens.TweenData
  * @since 3.0.0
  *
- * @param {object} target - The target to tween.
+ * @param {any} target - The target to tween.
+ * @param {integer} index - The target index within the Tween targets array.
  * @param {string} key - The property of the target to tween.
  * @param {function} getEnd - What the property will be at the END of the Tween.
  * @param {function} getStart - What the property will be at the START of the Tween.
+ * @param {?function} getActive - If not null, is invoked _immediately_ as soon as the TweenData is running, and is set on the target property.
  * @param {function} ease - The ease function this tween uses.
  * @param {number} delay - Time in ms/frames before tween will start.
  * @param {number} duration - Duration of the tween in ms/frames.
@@ -27,17 +29,19 @@
  * @param {number} repeatDelay - Time in ms/frames before the repeat will start.
  * @param {boolean} flipX - Should toggleFlipX be called when yoyo or repeat happens?
  * @param {boolean} flipY - Should toggleFlipY be called when yoyo or repeat happens?
- * @param {?function} [getActive] - If given, is invoked _immediately_ as soon as the TweenData is running, and is set on the target property.
  *
  * @return {Phaser.Types.Tweens.TweenDataConfig} The config object describing this TweenData.
  */
-var TweenData = function (target, key, getEnd, getStart, ease, delay, duration, yoyo, hold, repeat, repeatDelay, flipX, flipY, getActive)
+var TweenData = function (target, index, key, getEnd, getStart, getActive, ease, delay, duration, yoyo, hold, repeat, repeatDelay, flipX, flipY)
 {
     return {
 
         //  The target to tween
         target: target,
 
+        //  The index of the target within the tween targets array
+        index: index,
+
         //  The property of the target to tween
         key: key,
 
diff --git a/src/tweens/typedefs/TweenDataConfig.js b/src/tweens/typedefs/TweenDataConfig.js
index ac396cc94..5e70cac92 100644
--- a/src/tweens/typedefs/TweenDataConfig.js
+++ b/src/tweens/typedefs/TweenDataConfig.js
@@ -3,8 +3,9 @@
  * @since 3.0.0
  *
  * @property {any} target - The target to tween.
+ * @property {integer} index - The target index within the Tween targets array.
  * @property {string} key - The property of the target being tweened.
- * @property {?Phaser.Types.Tweens.GetActiveCallback} getActiveValue - If set, is invoked _immediately_ as soon as the TweenData is running, and is set on the target property.
+ * @property {?Phaser.Types.Tweens.GetActiveCallback} getActiveValue - If not null, is invoked _immediately_ as soon as the TweenData is running, and is set on the target property.
  * @property {Phaser.Types.Tweens.GetEndCallback} getEndValue - The returned value sets what the property will be at the END of the Tween.
  * @property {Phaser.Types.Tweens.GetStartCallback} getStartValue - The returned value sets what the property will be at the START of the Tween.
  * @property {function} ease - The ease function this tween uses.