King's Bounty for SEGA Megadrive/Genesis
A detailed and fairly complete tour of the graphics, sound, and text for this later console port. It could be useful if you want to put in custom graphics, translate the game, or play the music somewhere else. It also describes the format of the "save game" passwords.
King's Bounty for Amiga
A quite detailed description of the graphics and sound files and their formats. It has some worked examples for the LZSS-based compression and the Amiga bitplane format.