Armored Core: Formula Front

The player assumes the role of an Architect. An Architect is a person who builds, programs and battles with a modified Armored Core known as a u/AC or an Unmanned Armored Core. u/ACs are AI controlled Armored Cores which compete exclusively in battling tournaments. u/ACs battle independent of the Architect's control, so the Architect must influence how the u/AC fights by customizing various part combinations and loading various program functions into the u/AC's AI.

The North American version of the PSP game has since been modified to allow players the option of actually piloting their u/AC in battle instead of letting the AI fight. In the game, this is called a N-u/AC (N standing for Naked) and is supposedly notoriously hard to control.

In the game's story, Formula Front is a worldwide competition in which unmanned, AI-controlled ACs [u-ACs] are pitted against one another in fiercely contested arena battles. The game takes place twenty-five years after Formula Front arena warfare was introduced. It is now the world's most popular form of entertainment. At the heart of Formula Front's success are the architects. These are the individuals responsible for assembling and programming the u-ACs entered into league matches.

As the player fights their way into the Regular League, they are confronted by a new team, BT Wyvern, and its architect, Linus. After two matches against BT Wyvern, Linus sends a message that he meet the player again. Rank after rank, the player again confronts a formidable opponent, Team Ogre, and its architect, Diablo. Though Ogre usually wins through harsh tactics, their battle against BT Wyvern was horrible.

The PSP version received "average" reviews according to the review aggregation website Metacritic. In Japan, Famitsu gave the game a score of 30 out of 40 (8/7/8/7) for the PSP version, and 28 out of 40 for the PlayStation 2 version.