Developed by Suda51 & Grasshopper Interactive, published by Bamco. Released in the west! There's not much to say other than its fucking awesome and you should play it. It's weird, stylish and OOZING with the Suda & Grasshopper charm we all know and love. Combos are guided by a "rhythm track" on top of the screen. Successfully following the rhythm track allows you to build up your tension gauge and activate Hyper Mode, counterattacks, parries, mini-games and QTE's keep combat fresh with some shops (weapons, food, rhythm tracks) along the way. Four playable characters are available for extra replay value. In many ways this game can be considered as the spiritual predecessor to the NO MORE HEROES series.
There's way too many loading screens, and the OST is very limited because BGM is tied to the rhythm track you have equipped. Some people may find the game too easy due to the linear corridors and basic combat. If you've played NMH you'll feel right at home. I'm not sure how faithful or not it is to the source material.
Is anyone familiar with SAMURAI CHAMPLOO: SIDETRACKED (2006)? Critics didn't do this game justice at all!