A Steam Greenlight campaign is underway for Usagi Yojimbo: Way of the Ronin, the PC edition of this side-scrolling action game that's already available for mobiles. The samurai rabbit character is the creation of award-winning author and illustrator Stan Sakai, and word is that 100% of the game's profits for the first 47 days (in honor of 47 Ronin) after it goes live will be donated directly to Sakai to help with his family's medical bills. "Stan Sakai and his family have had a tragic year, and we want to help him out as much as we can," said Michael Levine, HappyGiant President. "We hope to use this as a 'Kickstarter-like' event, except in this case, the game is already done. We just need people to spread the word and vote for it on Steam!" This article shows other ways to support Stan and his family in their time of need as his wife struggles with a debilitating condition. Here's more on the game itself:

The title is a “2D side-scrolling hack-and-slash game”, done in the comic’s art style, and in the vein of the old Teenage Mutant Ninja Turtles Arcade game, to which Usagi is often linked, as the characters have appeared in each other’s comics and TV series over the years. The game features over SIXTY (60) different enemies, over 13 boss monsters and several of Usagi’s friends who fight along his side as companions in 13 action packed levels. The characters were all animated in 3D and the animation was brought into Unity3D in a proprietary method.