Optimize a Java Game Graphical Interface

You are to re-design the GUI to a simple multi-avatar tagging game played against a computer opponent. The game uses the portable Java and CORBA frameworks but does not have a particularly efficient or pleasing user interface (yet). The task you have to solve is to take a game that premiered at the ACM Symposium on User Interface Software and Technology (UIST) and modify its user interface according to good HCI principles and guidelines. You can make any changes you see fit to improve the user`s experience and make it easier for them to play the game.