strong characterization. It also introduced an early form of level-scaling where the bosses would get stronger depending on the protagonist's level, a mechanic that was later used in Enix's The 7th Saga and extended to normal enemies in Square's Romancing Saga 3 and later Final Fantasy VIII. 3D polygon graphics were popularized by the Sega Model 1 games Virtua Racing (1992) and Virtua Fighter (1993), followed by racing games like the Namco System 22 title Ridge Racer (1993) and Sega Model 2 title Daytona USA, and light gun shooters like Sega's Virtua Cop (1994), gaining considerable popularity in the arcades. In 1993, Square's Secret of Mana, the second in the Mana series, further advanced the action RPG subgenre with its introduction of cooperative multiplayer into the genre. The game was created by a team previously responsible for the first three Final Fantasy titles: Nasir Gebelli, Koichi Ishii, and Hiromichi Tanaka. The game received considerable acclaim, for its innovative pausable real-time battle system, the "Ring Command" menu system, its innovative cooperative multiplayer gameplay, where the second or third players could drop in and out of the game at any time rather than players having to join the game at the same time, and the customizable AI settings for computer-controlled allies. The game has influenced a number of later action RPGs. That same year also saw the release of Phantasy Star IV: The End of the Millennium, which introduced the use of pre-programmable combat manoeuvers called 'macros', a means of setting up the player's party AI to deliver custom attack combos. That year also saw the release of Romancing Saga 2, which further expanded the non-linear gameplay of its predecessor. While in the original Romancing Saga, scenarios were changed according to dialogue choices during conversations, Romancing Saga 2 further expanded on this by having unique storylines for each character that can change depending on the player's actions, including who is chosen, what is said in conversation, what events have occurred, and who is present in the party. PCGamesN credits Romancing SaGa 2 for having laid the foundations for modern Japanese RPGs with its progressive, non-linear, open world design and subversive themes. In 1994, Final Fantasy VI moved away from the medieval setting of its predecessors, instead being set in a steampunk environment,. The game received considerable acclaim, and is seen as one of the greatest RPGs of all time, for improvements such