Super Mario games feature a wide variety of items that Mario can use to aid him in his journey. Here are some of the most common and important items:

Mushrooms: These are the most well-known items in the game. When Mario hits a mushroom, he grows in size, which makes him more resistant to enemy attacks and allows him to break bricks more easily.

Fire Flowers: These items give Mario the ability to shoot fireballs at enemies, which defeats them and makes it easier to get through levels.

Super Stars: These give Mario temporary invincibility, making him immune to damage and allowing him to defeat enemies by simply touching them.

Super Leaves: These items only appear in Super Mario Bros. 3 and Super Mario 3D Land. They give Mario a Tanooki tail, which he can use to fly, glide, and attack enemies.

Cape Feathers: These items only appear in Super Mario World. They give Mario a cape, which he can use to fly, attack enemies, and spin-jump.

Coins: Collecting coins is a key aspect of the game. They are scattered throughout levels and can be used to buy power-ups and items from certain shops.

1-Up Mushrooms: These items give Mario an extra life. They are usually hidden in hard-to-reach places or earned by completing certain challenges.

There are many other items in the Super Mario games, and each game has its unique set of power-ups and abilities. The items listed above are some of the most commonly used and well-known.