I just finished playing No More Heroes for the first time today. The first thing I would like to say is that it's really satisfying to have an quality action game come out on the Wii instead of increasing the ever-growing flood of minigame collections available. Second, I know that the game isn't perfect. There are a few issues I think could be improved, but the game's strong points, the visual style, the story, the pitch-perfect voice acting, the characters, and the satisfying combat, greatly outweigh its flaws. If a sequel is made (and God-willing, there will be a sequel), the flaws leave an excellent opportunity for an even better game to be created. Third, what No More Heroes has going for it most of all is style and vision. The twisted plot and 8-bit inspired touches really make this game stand out not just among Wii games but among games in general. It's just different, and even though there are a lot of really good games out there, I'm glad that some developers are creating some very unique games. It's like a breath of fresh air, in some cases.
What I hope for is that this title helps to clear a path for similar games on all the consoles. What I really, really want though, is for more substantial, action type games to be developed for the Wii by third parties so that the Wii owners can get a wider selection of titles for their console.