UI Structure should be reversed to allow for easier interaction

On a mobile device, the bottom portion of an app is the most accessible and should ideally be used to show the frequently used parts, while the top portion of an app is used for showing information. This basically arises from the way the user holds the phone. The thumb can access bottom portions of an app easily.

At the moment, the "Give up" button is laid out at the bottom close to the user's fingers and encourages the user to press that button which is bad. While the most important bit which is the five letters and the textfield is shown at the top far from the fingers.

I would recommend reversing the layout with the new game button at the top and five letter at the bottom.