Traxx is a painting game similar in concept to Gridder. But Llamasoft has used the expanded memory capability to introduce arcade-quality graphics, sound effects and colour. You are presented with a uniform grid and steer your spaceship to paint around the grid squares: if you backtrack, or fail to meet another painted line within three line segments, painted segments are erased. While you are doing this, an alien wanders through the grid and you must avoid crashing into it.

After clearing one frame, the next one has an extra alien. The speed of the game and also the number of aliens can be pre-selected; but even at the bottom level, precision joystick control is required. A catchy little tune plays continuously while you paint, but be warned - you'll grow tired of it!