The box cover art for the Amiga, Atari, DOS and Genesis (PAL) release was done by famous comic artist Simon Bisley (Sláine, Lobo, Batman/Judge Dredd, and several other works).
The amazing title song, "Into the Wonderful", was written by Nation 12 which was a music project by John Foxx (of Ultravox fame). The Amiga music was converted by Richard Joseph for Bitmap Brothers. The original song was released on the album "Electrofear" by Nation 12 in 2005.
The Amiga version features multi-layered copy protection. The main part was cracked quickly, and produced what appeared to be a playable game. However, a second layer remained, which raised the difficulty level quickly, to the point where the first boss was impossible to beat. Unfortunately for the Bitmap Brothers, this hard work seemed to backfire, as many assumed that the cracked version they played was representative of the game's difficulty, and the game's reputation was hampered as a result.