Genesis Shining in the Darkness in 43:27.2 by DarkKobold PT2
TASVideos publication: http://tasvideos.org/1343M.html
TASVideos submission text: http://tasvideos.org/2322S.html
Shining in the Darkness is the first in the "Shining" series which includes Shining Force. Unlike the later games, it is a first person dungeon crawler.
The author dissected the game with the help of Lua scripts to find optimal battles and avoid random encounters.