Build me a simple java game with simple animation

The project is an integration between computer science and biology. There are two parts of the game. The user will play a game and when he loses, an animation will play. Basically, there is a start panel and when the start button is pressed, a new panel will appear. The new panel will contain a circular "cell" in the midle and there will be these "retroviruses" that enter the screen from random parts of the edge of the panel. These retroviruses will try to enter the cell. The user's goal is to stop these retroviruses by clicking on them. Onced clicked, they will disappear. That will serve as the game part of the program. Once a reteovirus touches the cell, all other retroviruses will disappear and the game will stop (there will be no more retroviruses that will enter the panel). After that, an animation will occur. Are you up to it?