$ ./YOU_ARE_DEAD -h
YOU_ARE_DEAD [options]

KEYS: wasd. YOU ARE DEAD.

-[1-9] SHORT GAME.
    -e ENDLESS MODE.

DVORAK MODE:
    YOU_ARE_DEAD_KEYS=",aoe" ./YOU_ARE_DEAD

FIXED LEVELS:
    SEED=1 ./YOU_ARE_DEAD (always the same topography for given SEED)

PROTIP TO PREVENT HORRIBLE ACCIDENTS:
    # you must beat a level before you can execute scary_function
    while :; do ./YOU_ARE_DEAD -1 && break; done
    scary_function

$ ./YOU_ARE_DEAD 
 .  <  ~  .    ~ ~ . .<     .  < ~    ~     < .    < .  ~ . ~ ~. ~   ~ .  .  . .
LEVEL 2
                           x< <~. .    . ~<     ~  ~ .    <      <<   < ~    ~ .
LEVEL 2, SCORE 108 00:01:08. YOU ARE DEAD.