@DamienD
Some people would've seen the coverdisk demo back in the day released by Amiga Action. Pity the game was never released as it looked like it would've been a cracker!
http://amr.abime.net/issue_104_coverdisks
EDIT: Just saw that
Mick Tinker (infamous dev of the unreleased and very ambitious
Amiga BoXeR /
Inside Out-Siamese PCI hardware) was the main coder of
Son of Zeus, so it's not bloody surprising that the game was never released!