The game features a character-switch feature, similar to the spin-off, Samurai Warriors: Chronicles, where players can take two characters in battles. Two new moves, "Godspeed Action" and "Secret Musou" are featured: "Godspeed Action" is a move that allows the player to clear out crowd of enemies, although it is useless against enemy officers, as they will either deflect or otherwise immune against it, while Secret Musou enhances the player's attacks as well as changing their usual Musou attacks with stronger "Ultimate Kaiden Musou" by using the Spirit Gauge. Duels are featured, which occur when player-controlled character meets with enemy officers under specific conditions.
Source: Wikipedia, "[en.wikipedia.org/wiki/Samurai_Warriors_4 Samurai Warriors 4]", available under the CC-BY-SA License.