Bingo Books (手配書, Bingo-Bukku) are black books used by ninja that contain any and all information on black-listed ninja they are to target. There are multiple versions of the Bingo Books, the most common being those based from the Hidden Villages.
Any black-listed target inside of a Bingo Book can be given a number of different classifications depending on why they were black-listed in the first place. The classifications and their meanings are as follows:
- Criminal: Ninja listed as criminals have committed serious crimes against the Bingo Book's respective village. This might be something like murder, theft or something similar. They can include both foreign and domestic ninja. These bounties are usually the smallest type of bounty.
- Missing-nin: Missing-nin are ninja who abandon their village with no intention of returning. Missing-nin are criminals in effect, if not before their defection then certainly after abandoning their duties. As such, missing-nin are listed in their village's Bingo Book to be killed on-sight. They include only domestic ninja. These bounties are usually the highest kind of bounty.
- Enemy-nin: Enemy-nin are ninja who haven't committed crimes, per se, but rather ninja from other villages that the Bingo Book's respective village has deemed either a potential or immediate threat. They include only foreign ninja.
- Excessive-Risk: Ninja labelled an Excessive-Risk are the most dangerous ninja listed in a Bingo Book and are considered to be some of the strongest ninja in the world. Very few, even Kage level, ninja are ever given this label. Usually, ninja that are labelled an Excessive-Risk come with a Flee-on-Sight warrant, ordering any ninja that may come across one of these to retreat immediately; as such, they often don't come with a reward.
- Civil Bounty: Civil Bounties are those people with bounties placed on their head not by a hidden village, but by anybody who is willing to offer a reward for the capture or killing of another. Anybody, including players, can place these bounties for a minimum of 30,000 Ryo, though doing so to a comrade is considered illegal under all hidden village laws. These bounties are rarely seen inside a Hidden Village Bingo Book, and instead usually reside in their own, Civil Bounty Bingo Book. Players can spend their own Ryo to place these bounties themselves.
It is important to note that any bounties collected are subject to heavy tax penalties, leaving the collector with a mere 10% of the reward.
NOTE: The stats and ranks in each of the Bingo Books ARE NOT at all accurate, and are merely estimates based on in-character observation.