New Super Mario Bros. Tips

Extra Lives
World 1-1

Play through the Level until you get the Mega Mushroom. Run and jump through the level to get 1-7 1 ups. Then when you are at the pole, jump on the stone, but don't go through. Wait for the timer to have the last 2 numbers 44 or 55 (eg. 255, 044)Go through and a different song will play. Fireworks will follow and when you get out of the level a Green Mushroom House should appear. I did this and got 99 lives