I have no idea what the heck is going on. I had to try every button on the keyboard until I realized that the (•) button is apparently Z. At least it let me advance the dialogue. During the actual game, I'm not sure if I'm supposed to control the ship (it just kept moving right) and I'm not sure if Z did anything. It ended after a minute or so when i got an error message:
RUNTIME ERROR LINE 0 TAB 0
IF(DST(BULLET.CENTER,ENEMY.CENTER)-2 <= BULLET:RADIUS+ENEMY.RADIUS) RETURN TRUE
ATTEMPT TO INDEX LOCAL ´ENEMY´ (A NIL VALUE)
IN COLLIDES LINE 0 (TAB 0)
IN V_ENEMIES LINE 0 (TAB 0)
IN V_STATE LINE 247 (TAB 0)
IN _UPDATE LINE 43 (TAB 0)