"Games will inevitably stagnate at one point or another, no matter how much effort is put into heading off that unfortunate eventuality. Leads will get exhausted, players will get frustrated with puzzles, and nobody will come up with a good, crazy plan to save the day. There's only one thing you can possibly do in such a situation. Send in the ninjas. Seriously. Send in the ninjas."So simple in its gameplay, yet so epic in its scope! Ninja Tropes! Ninja Tropes! Compare Bushido Index.
— Spirit Of The Century Rulebook