This portable game of ancient combat casts players as legendary samurai and ninja warriors, who must battle through trap-laden castles and open battlefields that teem with enemy soldiers. Based on Omega Force's Samurai Warrior console games (which are themselves a Japanese-themed extension of KOEI's popular Dynasty Warriors series), State of War offers 37 stages that play out across 22 PSP-exclusive maps. Available characters include all 19 legendary figures featured in 2004's Samurai Warriors and Samurai Warriors: Xtreme for PlayStation 2. Up to four properly equipped PSP warriors can fight for State of War supremacy through an Ad-hoc wireless connection.