In Super Mario Bros. Wii, you can make Mushroom Homes appear.
On levels where Toad is trapped, grab the flagpole when the last digit of the time counter reaches:
7, 8 or 9 for the Gold Mushroom House.
4, 5, or 6 for the Red Mushroom House.
0, 1, 2 oe 3 for the Green Mushroom House.
If you are playing multiplayer mode, you have to make the last 2 digits end with the specified number.