Initial release date July 2005 Publishers Bandai, Banpresto | Developer Capcom | |
![]() | ||
Genre(s) Action-adventure, Anime Platforms PlayStation Portable, PlayStation 2, Arcade game Modes Single-player video game, Multiplayer video game Similar Bandai games, Action-adventure games |
Gundam Seed: O.M.N.I. vs Z.A.F.T. is a third person arcade game based on the Gundam Seed franchise. It was developed in 2005 by Capcom and published by Bandai (now known as Bandai Namco Games) in Japan. Similarly to Mobile Suit Gundam: Gundam vs. Zeta Gundam, the player can choose to ally themselves with either O.M.N.I., Z.A.F.T. or Blue Cosmos and fight against the other factions. The Arcade Mode has 9 stages plus a bonus Extra Stage.
Contents
- Gundam Seed Federation vs ZAFT Portable
- Arcade Mode
- Free BattleVS Mode
- Mission Mode PSP Exclusive only
- Playable Units
- Playable Characters
- References

On November 11, 2005, a PlayStation 2 port was released in Japan which featured new pilots and units from the sequel Gundam Seed Destiny, as well as new unlockable features.

A sequel, Gundam Seed Destiny: O.M.N.I. vs Z.A.F.T. II was released in 2006.
Gundam Seed: Federation vs Z.A.F.T. Portable

In March 2007, A port of the game was also released for the Sony PSP by Bandai Namco Games in Japan. In addition to the extras available in the PlayStation 2 version of the game, the PSP version includes an all new Mission Mode with missions based on the plot of the anime. Aside from the new mode, the PSP version is an otherwise direct port of the PlayStation 2 version with all unlockables from PS2 version already unlocked in the PSP game without the need to play Arcade Mode several times.
Arcade Mode
This mode provides the same basic gameplay as the original arcade, with the added bonus that players may configure various fight settings to customize the gameplay. The AI skill level, along with Damage dealt/received, round time, boost gauge, and other options for Arcade battles, may be adjusted in Game Options. Players may also choose to engage in cooperative gameplay with a friend in the Arcade multiplayer co-op mode. However, not all units in the game are playable in this mode.
Free Battle/VS Mode

Versus Mode features all playable units in the game, including units you cannot select in Arcade Mode. This mode supports up to 4 human players or play against 3 AI opponents in a free-for-all deathmatch or in teams. The PlayStation Portable version uses the PSP's Ad Hoc mode to connect players but does not support Game sharing so each player must have their own copy of the game.
Mission Mode (PSP Exclusive only)

In Mission Mode, players must first choose O.M.N.I. or Z.A.F.T. as his/her alliance. About half-way through the storyline, players can choose to either continue serving their original alliance or defect to the Orb Union. Players start off with two of four basic units, depending on their initial alliance. Players fighting for the O.M.N.I. forces start off with the FX-550 Skygrasper and UWMF/S-1 GINN WASP. Those playing as Z.A.F.T. pilots are given the TFA-2 ZuOOT and UWMF/S-1 GINN. As the game progresses, players will also acquire new units after beating certain missions. Additionally, points awarded after each mission allow players to upgrade to better mobile suits by filling up their SP gauge (similar to leveling up with an EXP gauge in most RPGs). Different units are made available depending on the choice of upgrades selected by the player.
Playable Units
ZAFT :
OMNI:
Orb Union:
Playable Characters
ZAFT :
OMNI:
Orb Union: