This is not exactly a d20 book but rather a sourcebook to the Usagi Yojimbo RPG based in the adventures of an anthropomorphic rabbit samurai named Usagi Yojimbo as described in a series of graphic novels by Stan Sakai. Nevertheless, conversions of the monsters to d20, as well as FUDGE, are included. Productions values are good, the book resemble a good quality comic book with B&W interiors. Sakai art is exceptional, although its cartoonistic style may not be of the liking of some d20 enthusiasts.
Fourteen monsters are described. For each one of them the book provides an Instant Fuzion stat block, an illustration, a discussion of special qualities, appearances in Usagi Yojimbo graphic novels, and a short scenario easily dropped in any campaign. The d20 stats are found in the end of the book, although only in a reduced stat block with some noticeable absences such as challenge ratings.
Although most of the material is well written, it is of questionable value to a d20 player. Monster illustrations are very stylized. Although they are very good and adequate to a Usagi Yojimbo campaign, they might be a disappointment to someone seeking a sourcebook for Oriental Adventures. However, my main complain is that this book is priced at US$12.00! This is far too expensive, even to a Usagi Yojimbo player, as it contains only fourteen monsters. My rating is aimed to d20 players; anyone interested in an Ysagi Yojimbo sourcebook should add an extra star.
