Super Mario Bros.: World 3-1

You'll first see 2 Paratroopas by 3 ? Blocks. You can go down the taller pipe to a secret room with coins or continue ahead. Cross a bridge with Goombas and you'll next see Hammer Bros throwing hammers. When you see a spring, hit one of the garbage blocks next to it to reveal a vine to go to the sky for coins or continue on the surface to use a Koopa shell to knock over enemies in a row. The stairway has 2 Koopas coming down so dodge them and go to the flagpole.