It was written by Michael St Aubyn and published by Micro Power.

[1] It was reissued as the lead game of Superior Software / Acornsoft's Play It Again Sam 5 compilation in 1988 when it was also converted for the Acorn Electron.

The game features sixteen levels, which are played in a random order.

Imogen has cartoon-style graphics, with many of the non-player characters being cute versions of animals like rabbits, monkeys, parrots and frogs.

One recurring character is a baby-like imp who impedes the progress of the player and is usually dispatched in a terminal way.