No Game Title but help needed

[drago9876]

The game's desired functionalities:
-Your character is a box*
-Boxes will move towards him
-More boxes user kills, more points he gets
-More points at the end will reward a new character**
-Last unlocked character is customization
-Longer he lives harder enemies get, and more enemies at one time**

*this part is done
**this part is a low priority

The problems i am currently having:
- The KeyListener is not working with the MouseListener, so i completely removed the MouseListener. I would like to know if this is just because the MouseListener disables getting focus on the window or what?
- The image keeps flickering, i have tried a backbuffer tutorial on the following website http://www.dgp.toronto.edu/~mjmcguff/learn/java/07-backbuffer/
I can't seem to comprehend enough, so that i could use it in a KeyListener method..

Anything reference, link, or update on my game would be nice

Straight from the README file inside

[drago9876]

Forgot to add some instruction to the game