Langton's Ant in scratch! I suggest you run it in turbo mode. Zooming below 3 breaks it. The delay is in hundredths of a second, so delay = 1 would mean 0.01 seconds, 10 would mean 0.1 seconds, and 100 would mean 1 second.
See https://en.wikipedia.org/wiki/Langton%27s_ant if you don't know what Langton's ant is.
