Maniac Mansion (v1) - Video Game loop demo.
Developed and Published by Lucasfilm Games for PC (MS-DOS) in 1988.
The v1 version is based on the original 8bit computers version (released for C64 and Apple ][ in 1987).
The v2 version (enhanced) was released in 1989 for 16 bits computers (Amiga, Atari ST, and again PC MS-DOS).
On NES console there were two ports, both published by Jaleco :
The first one, ported by Jaleco, was released in 1988 in Japan, and based mostly on the 8bits computers version.
The second one, ported by Realtime Associates, was released in USA in 1990 (and later in Europe), and was an adaptation of the 16bits computers version.