How do you beat level 2-2 on Super Paper Mario?

Answer 1

1. Enter the mansion.
2. Walk to the right. When you reach the end flip and enter the door.
3. Walk to the right and jump up the stairs.
4. Do as Mimi says and enter the room on the far right.
5. Walk to the right and press the button on the wall.
6. Flip when the spikes get close to you (not to soon or your Flip Meter will run out and you'll lose 1HP).
7. While flipped jump on top of the spike platform.
8. When the spikes go back up remain on top of them. (Don't forget to un-flip!)
9. Walk to the left and jump up two platforms.
10. Use Boomer to blow up any Brick Blocks in the way.
11. Flip and walk around (carefully) any other blocks.
12. Continue along the path until you see another platform above you.
13. Jump onto the platform and open the treasure chest. You'll receive a key.
14. Flip and fall down to the floor.
15. Exit the room and walk down the stairs. You can enter the other rooms if you want, but this is not required to complete the chapter.
16. Flip and walk to the right. Walk past the Gnaw (the giant, purple, dog-like thing).
17. Unlock the lock (avoid the Gnaw).
18. Enter the door, walk to the right, and hit the Star Block.