Madball

Madball is a simple but challenging game of reflexes. Your objective is to guide the white box from the left side of the screen to the exit on the right. Each level has a number of balls (equal to the level number) that are bouncing around the screen in predictable patterns that you must avoid. Presentation is basic, with monochrome textmode characters and minimal PC speaker sounds. It gets tough quickly, even at the easiest difficulty setting. According to the documentation the highest level / number of balls reached is 23 (!) but that seems impossible.