Here is a list of things that you may want to find in this game to help you on your adventure.

 Level Items

 Coins Collect 100 for an extra life.

 Super Mushroom Collect one as regular Mario to grow into Super Mario.

 Racoon Leaf One of these will give you the power of temporary flight and the ability to smash things from
 the side (enemies, blocks, etc.)

 Fire Flower Get one to gain the power of shooting fire-balls.

 1-up Mushroom Gives you an extra life

 Tanooki Suit Similar to the racoon leaf but also enables you to turn into a statue to avoid enemies' attacks.

 Frog Suit Makes swimming easier and makes you jump higher. It is also not affected by currents in the
 water.

 Hammer Bros. Suit Gives you the most powerful weapon in the game, HAMMERS!!!! They kill all enemies in
 one go. When you duck your shell protects you from enemy fireballs.

 Starman Makes you temporarily invincible.

 Kuribo's Shoe Steal one of these from a Kuribo's Goomba and you can stand on anything. Any enemies you
 jump on (even spiky or piranha plant ones) will be killed.

 Magic Wand Beat a Koopa Kid to get this item and complete the world.

 Map Screen Items

 Hammer Lets you destroy rocks on the map screen, letting you get to new areas

 Anchor Stops the Airships from flying away from you. They are very well hidden though.

 P-Wing Gives you unlimited flight until the end of the stage (or if you lose your racoon suit)

 Jugem's Cloud Lets you skip any level except castles.

 Warp Whistle find these to skip to another world.

im outta here