Top scores on levels

the high score on https://codecombat.com/play/level/desert-combat?
is

how is that possible???
I mean I 'v saw 8 secs with ritic but still how do u get 0.67 HOW?
and then the high score for https://codecombat.com/play/level/dust?
is


how do people do this???
edit: @xython i haven’t copied the codes and also I restarted now I am not using GitHub

The question is not how, but will you explore this way of doing levels? It’s similar to copy/paste others code and pretend it’s yours, but it’s the worst way I know.
P.S. topic for closing?