Mario and Luigi can attack normally either by jumping, which can deal multiple hits but is risky to use against spiked enemies or enemies covered in flames, or by using the hammer, which is powerful, but ineffective against flying enemies.
Mario and Luigi can attack normally either by jumping or by using the hammer. The hammer is powerful, but ineffective against flying enemies. Jumping can deal multiple hits. Jumping is risky to use against spiked enemies or enemies. These spiked enemies are covered in flames. Enemies are covered in flames.