Wangan Sensen Red City (lost build of cancelled Virtual Boy game; 1996)
From The Lost Media Wiki
Wangen Sensen Red City (湾岸戦線レッドシティ) is a cancelled Virtual Boy game to be released sometime in 1996. The game, like many others, was cancelled due to the failure of the Virtual Boy.
Gameplay
A translation of the the title of the game suggests that it's a tactical war simulator. The screenshots seem to confirm this. Reviews of the game say that it used both dpads, had 9 stages, and had a giant warship as a boss.
Availability
A prototype is known to exist. Besides this prototypes known existence, there is not much else. Only three screenshots (one of which is a cutout) are known to exist.