New Super Mario Bros.: 1-1

It's World 1, so we get a simple level to get us started. We find the first Star Coin over four brick blocks. In one of the nearby item blocks is a Mega Mushroom, which makes Mario grow to fill the whole screen. As Mega Mario, he's invincible and destroys everything in his path. If you time it right, you can destroy the stairs and the flagpole. At the top of the screen is a meter. If it fills up, you can get up to 5 1-ups. Destroying everything means you'll probably miss the green pipe to the second Star Coin, which is underground. The third Star Coin is in a gap under some brick blocks. We have to be Super Mario to reach them with a ground pound. From there, we reach the flagpole.