port consisted of two programmers and six to nine artists. The Game Boy game was completed and released by the end of the year. The Nintendo 64 game's development lasted two years. Caen's initial plan was for a style of gameplay only Tomb Raider (1996) had tried before, a 3D open world action-adventure video game involving real-time strategy where players really behave as a superhero. As he explained, "it would stretch the Nintendo 64 to its limits, feature Superman's ability to fly and fight, and include his every superpower." However, it would be too much for the Nintendo 64's limitations. As a result, less than ten percent of the original design was implemented in the final product. Only a few days after the deal was made, the Warner Bros. licensing team changed. Based on Caen's testimony, the new group instantly hated Titus and the project and tried to stop its development. The first demand was to make Superman "a Sim City-like game, where Superman would be like the mayor of Metropolis", instead of an action game. Warner Bros. only got more coercive after Titus rejected the idea, going against any decision of the French developer. Often, their reasoning for rejection was that Superman would never do the things Titus proposed. Elements that survived, such as Superman swimming underwater, were kept in after Titus staff members showed documentation of the original Superman comics. Some changes were mandated for reasons of putting the fictional DC Comics hero in a positive light. In addition to the limiting of Superman's powers and removal of breakable architecture, the game was set in a virtual world in order for the titular hero to not harm "real" people. Although the ring stages were originally supposed to be tutorial stages, they became a part of regular gameplay due to the other changes. These conflicts resulted in a delayed production process where "it took [Titus] months to get every single character approved" and an inability to fix bugs and issues associated with the collision detection and controls that the final product would be criticized for. Near the end of its development, technical support was provided for Titus by Nintendo of America. Pre-release publicity Superman was shown at three E3 events in 1997, 1998, and 1999. The game was unofficially named Superman 64 by some publications since the 1997 E3 event, as indicated by its coverage from Game Informer. The