Play the role of a mercenary ninja on a mission of revenge. Your enemies, the Red ninjas, attacked and killed a band of rivals. Fight through waves of ninjas and other powerful enemies to avenge your fallen comrades. Use weapons, new abilities, health packs, and other powerups you find along the way to defeat strong bosses at the end of each stage. Land attacks to rack up points, and complete all the stages to beat the game. Don't let those Red ninja pests get away with what they've done! Strike them down and have your revenge!