: Players can pilot large mecha called Anti Gnosis Weapon Systems (A.G.W.S.), which can be customized with various weapons like guns and swords.
: Battles use a "Boost" mechanic that allows players to interrupt the turn order to gain an immediate action, often critical for boss encounters. Xenosaga Episode I Der Wille Zur Macht
: The title includes extensive side content accessible through "passports," such as a collectible card game (XenoCard), a drill crane game, and a casino with slots and poker. Review: Xenosaga Episode I – Der Wille zur Macht : Players can pilot large mecha called Anti