the most impressive ascii art effect I ever saw was during movement. the minute it stops the motion blur goes away. in effect, I concluded I was looking at temporal antialiasing-like effects. (forget which demo it was, some 3d thing.)
I wonder how much you could improve the effect (i.e. the woman after the 4:00 minute mark) by making it move. From the way it's drawn I'm not sure if you could get even 2 fps though.
I wanted to do some more impressive animation with the 1K color mode, but ran out of time unfortunately. One tricky part about doing animation with this mode is that it suffers from the "CGA snow" bug (visual glitching when writing to video memory). To avoid that by writing to video memory only during the vertical retrace/overscan period means that it would take about a quarter of a second to update the entire screen.
Totally deterministic. I think there's even an emulator which models it (though without a cycle-exact emulation of the CPU the snow won't be in the same places as on real hardware).
I wonder how much you could improve the effect (i.e. the woman after the 4:00 minute mark) by making it move. From the way it's drawn I'm not sure if you could get even 2 fps though.