Author of many classic 8 bit games, such as
Llamatron and Revenge of the mutant camels, and later Tempest 2000 for the Atari Jaguar.
Worryingly obsessive about ungulates such as llamas, camels, goats and sheep.
Jeff's goat, Alistair has recently died, but Flossie the most beautiful sheep in the world is alive and well.
He's currently working on Tempest 3000 for VM Labs' Nuon console/set-top box type thing.
Also known as the YaK.