Great!!
Whats good about the game is that there are extras to this game. You can turn into either 2D or 3D, which is a good feature and lets you do more exciting things with the game. There are also pixels. These small things are great and help you in sticky situations. One lets you hover, others let you listen to music, one makes you jump high and there are many others. The game isn't just a 5 hour game. This game took me at least 30 hours to finish. Which is good, because is challenges you, A LOT. Maybe too much. At some points, the game annoyed me a lot. There are 8 different warp rooms, and before you enter each one, you have find it. Towards the end, finding these things were as hard as finishing Grand Theft Auto: San Andreas. I had to go to IGN and look at the guide to help me. The audio on Paper Mario is good, because no know speaks in the game. They just have bubbles upon there head and it says what they are syaing. Saying this, it takes a while to get to the next mission, because it takes ages to read all the info.
When you have finished the game, there are many other things to do. There are levels where you have to pass 100 levels without dying, which takes a while. There is also a battle ground, where you have to pass 100 levels, which is also very challenging.
To conclude, Paper Mario is a great game for the person who likes to be challenged.