To go to worlds 2, 3 or 4 from 1-2, go to the area with the platforms that go up and down and try to reach the top of the level.
There are a few shortcuts in Super Mario Bros that will allow you to skip some of the more dangerous worlds and quickly advance through the adventure. Want tips on how to be the best in Super Mario Bros? Use them wisely and defeat all the enemies you encounter. The green mushroom will give him an extra life. The flower will give him the power to throw fireballs. You'll find 'power ups' around the stage that will make Mario more powerful. Use the X button to make Mario run around the stage, which will help you escape from enemies and make longer jumps. Use the Z button to jump by pressing a direction on the arrow pad to direct the jump.
Use the directional pad on your keyboard to move Mario or make him crouch.
This classic video game has very simple controls that nevertheless offer great gameplay.
