Circoid - running square

It all started with one pixel,

only later chaos ensued.

The small red dot began to spread

throughout the matrix. Subsequent pixels became infected

and unable to perform their tasks.

The fate of the entire matrix seemed sealed,

when a resistant one appeared on the horizon

to the overwhelming red.

Perhaps all was not lost yet.

The blue pixel has gained allies

and set off on a journey diagonally across the screen.