Mushroom

Mushrooms are a common item found in just about every Mario game invented. Different types of mushrooms have different effects. Even the Toad people are humanoid mushrooms.

Mario & Wario
In Mario & Wario, if a blind character gets a Mushroom on the floor, the item magically gives the player more time to complete the level the player is on. Unfortunately, it appears in certain levels that need more time.

Super Mario RPG: Legend of the Seven Stars
In Super Mario RPG: Legend of the Seven Stars, a basic Mushroom recovers 30 HP for one party member. This mushroom had a red and white cap with an orange stem (and no face). However, Mushrooms that are found in Treasure Boxes recovers all HP and FP for Mario's entire party. These Mushrooms are used as soon as they are picked up. Additionally, these powerful Mushrooms have faces.

In the same game, becoming a Mushroom is status ailment. While a Mushroom, the character recovers health every turn, but is completely immobilized.

Super Mario 64 DS
Mushrooms also appear in Super Mario 64 DS as a power-up that makes the characters grow to extremely large for a limited time.

Mario & Luigi series
During the events of Mario & Luigi: Superstar Saga, a Mushroom recovers twenty-five HP for one ally. In Mario & Luigi: Partners in Time, a Mushroom recovers twenty HP for one ally.

Mario Party series
Mushrooms such as the Golden Mushroom, the Cursed Mushroom, the Mini Mushroom, the Super Mini Mushroom, the Mega Mushroom and the Super Mega Mushroom are also used as items in the Mario Party series to earn more dice blocks. Mushrooms were a item in Mario Party 2, Mario Party 3 and Mario Party 4. Rolling the same number gave 10 coins to the user, rolling double 7 gives 20 to the user. There was a Mushroom Capsule in Mario Party 5 and Mushroom orbs in Mario Party 6 and Mario Party 7.

Mario Sport Events
Mushrooms also appear in the Mario Kart series to increase a player's speed and has also appeared to increase speed in Mario Power Tennis, Mario Hoops 3-on-3 and Super Mario Strikers.

Trivia

 * In Super Mario Bros. the Super Mushroom looked much like the Mega Mushroom. The 1-Up Mushroom had a similar appearance but with green spots.
 * In Mario & Luigi: Superstar Saga, it is interesting to note that the Mushrooms had no faces, and their cap's coloring was reversed. They had red spots on a white cap, making the Mushrooms look much like Toad.
 * In New Super Mario Bros., there were mushrooms on Midway Point flags, As well as on the Main Flags of each castle.