Super Paper Mario, although short, presents a challenging and amusing Wii game worth checking out.
No, there isn't voice acting, but going into this game you'll realize that the characters are better left that way. In fact, it's the writing itself that seperates the game from it's predecessors. The humorous writing style reflects that of the Mario and Luigi series (DS/GBA). The characters are given plenty of dialogue, all used to develop the plot.
This game is exactly what the previews say: not only is it an RPG, but it is also a 2D sidescrolling platformer, and a very entertaining one, at that. Somewhere along the course of the game, you recieve a special "interdimensional power" that allows you to view the open world from a 3-dimensional standpoint. This allows you to solve new puzzles presented to you as levels progress, and defeat enemies you'd not normally see from your average 2D perspective. A very minor problem is the camera during flipping to 3D. Occasionally, objects will block your view. This doesn't happen often at all, but when it does, it gets a little frustrating.
The puzzles themselves increase in difficulty from a simple flip to 3D solution in Chapter One to actually having to hunt for information in a fortress in the further seven chapters. This suits the game nicely, because the more abilities you get, the more possibilities to try to solve it.
As for the game length, you won't be getting a 50-hour adventure as in the Legend of Zelda, but a solid 20 hours to complete the story. This may disappoint at first, but there is so much to do after the game's completion that you may be kept playing for an additional 10-15 hours. The story really makes you want to keep playing, which is a huge plus.
The sound this game has disappoints, though. The music is less catchy, mostly synthesized rehashes of the original Mario games, with some new tracks to boot. None of these tracks really stick in your head as in previous Paper Mario games do. Besides this however, there are really not too many sounds that are bad or repetitive.
I'm not saying it IS the best Wii game on the market, but it is certainly the most addicting. I strongly recommend this game to all Wii owners. If you don't want it because "it's too kiddish," then I'm sure others will agree that you're missing out on one of the strongest titles on the Wii thus far.