I was messing around with some tweens and the different variations of easing when I hit a couple of problems... Error: Uncaught ReferenceError: TWEEN is not definedLooking in the Easing.js file, I found a few references to TWEEN in Bounce.In and Bounce.InOut... Line 243: return 1 - TWEEN.Easing.Bounce.Out( 1 - k );Line 271:if ( k < 0.5 ) return TWEEN.Easing.Bounce.In( k * 2 ) * 0.5;return TWEEN.Easing.Bounce.Out( k * 2 - 1 ) * 0.5 + 0.5;I replaced TWEEN with Phaser and everything was happy to play after that. I tried a few searches and didn't find mention of this on the forum here, or on github, so I don't know if anyone is aware of this.