Grand Theft Auto 64 (lost build of cancelled Nintendo 64 port of action-adventure game; 1999)
From The Lost Media Wiki
Grand Theft Auto 64 was a canceled N64 port of the original Grand Theft Auto on the PS1. It reportedly would have featured enhanced graphics, new levels, and "new characteristics," but for unknown reasons the port was canceled before being publicly revealed.
Existence and Availability
Outside of the announced features of the port, little is known about it as there are no screenshots, videos, or (known) prototypes demonstrating any elements of the game and it may not have been developed in any capacity before being canceled.