Loading Biorhythm on the Atari 800. This is an interesting one that plots your emotional, physical and intellectual capacity - as long as it's up until 1999 that is, as it sadly wasn't millennium-proof. Great example of another early piece of Atari software innovation, it came in two versions - 8k and 16k. Also of course the fantastic dual track system which lets the speech and cheesy disco-funk play while the software loads. From 1980. See my other vids for other examples of retro Atari fabulousness.