One version is common, at least one other version is rare
 Game produced by MicroProse under licence from Epyx. Original game concept/design by Dennis Caswell. Main coding by Paul Dunning; additional coding by Tim Cannell. Graphics by Paul Ayliffe, Drew Northcott, John Reitze, Allan Holloway, Mick McCallion, Robert Dorney and Martin Severn. Music & sound FX by Allister Brimble; speech synthesis by Electronic Speech Systems (ESS), sampled directly from the C64 version. Floppy disk compression by Rob Northen.
 IMPOSSIBLE MISSION was only released on the Amiga as a bonus game included with the enhanced update IMPOSSIBLE MISSION 2025, which can be accessed from the game's titlescreen menu.
 The Amiga version of IMPOSSIBLE MISSION is a pixel-for-pixel remake of the C64 release of Epyx's classic platform puzzler from 1984 (see HERE), and includes the excellent digitised speech of the game's evil protagonist Professor Elvin Atombender.
TRIVIA:MicroProse asked Epyx to provide some sound samples (including the speech) for the 16-bit port of IMPOSSIBLE MISSION, but most of the original 8-bit source code had been destroyed in an earthquake. Consequently, programmers Paul Dunning and Tim Cannell coded the port by look and feel since they didn't have access to any original game code either! [Source: Interview with Stuart Whyte(project manager), courtesy of the Internet Archive]