In his normal state, Mario can take one hit from an enemy and kill most of the monsters with a stomp. By opening doors, the player can find power-ups, which grant different powers. A Super Mushroom transforms Mario into Super Mario, making Mario glow and have the strength to take two enemy hits. If the player finds another mushroom while Mario is in the Super Mario form, the item turns into a Fire Flower. When grabbing it, Mario becomes Fire Mario and can throw fireballs to kill enemies. A 1-up mushroom known as "Extra Mario Mushroom" or "Toad" can only be found by Fire Mario. Another way to earn an extra life is collecting 30 coins. The player can also get a Star Man, which makes Mario temporarily able to knock any enemy off the screen by simply touching them.