```js let combinedtween = tween .chain(tween2) .chain(tween3) .chain(tween4) .chain(tween5); ``` wouldn't work instead one needs to apply the chaining 'back to front' à la ```js let combinedtween = tween .chain(tween2 .chain(tween3 .chain(tween4 .chain(tween5) ) ) ); ``` which is kinda cumbersome see [codepen](https://codepen.io/HannesGitH/pen/XWqEqVg) L20 (wont work) vs L22