I once used that by accident to find the encoding of a games' sprites. Due to a fluke I had it set to 27 characters wide and while scrolling through, I noticed

I once used that by accident to find the encoding of a games' sprites. Due to a fluke I had it set to 27 characters wide and while scrolling through, I noticed an ASCII representation of a bike + rider that appeared in the game. Its outline was relatively easy to spot because transparent pixels were encoded as zeroes, so the background appeared in the readout as periods.