Watermelon

Watermelons are fruit that appear in several games of the Mario series and differ from game to game.

Super Mario World 2: Yoshi's Island
In Super Mario World 2: Yoshi's Island, there are three different types that offer special attacks. Green Watermelons allow a Yoshi to spit out the seeds as projectiles; if it already has a bite mark in it, there will only be a third as many seeds. Red Watermelons allow a few shots of fire breath that burn enemies and melt Ice Blocks. Blue Watermelons allow a few shots of ice breath that freeze enemies, making them harmless and immobile and causing them to break apart when a Yoshi touches them.

Yoshi's Story
In Yoshi's Story, Watermelons appear as the favorite fruit of Green Yoshis, along with Melons.

Yoshi Touch & Go
In Yoshi Touch & Go, Watermelons, when eaten, give Yoshi five eggs.

Donkey Kong 64
In Donkey Kong 64, watermelons are used as the Kongs' life meter. Each watermelon has up to four slices and the Kongs can have up to three watermelons for their life meter.

Mario Party 5
In Mario Party 5, green Watermelons similar to those found in Yoshi's Island appear as a battle weapon worth seven battle points.

Super Mario Sunshine
In Super Mario Sunshine, massive Watermelons appear. In Gelato Beach, a shack makes Watermelon smoothies, and there is a festival to show off the person with the largest Watermelon. The Watermelons there are extremely sensitive to pressure, and act and look more like water balloons. In the secret levels, Watermelon Blocks can be found, which act as breakable blocks.

Super Mario Galaxy
In Super Mario Galaxy, when 9999 Star Bits are collected, all the green coconuts in the game turn into Watermelons. In the same game, a Watermelon is featured in the mission entitled "Bubble Blastoff" of the Deep Dark Galaxy. Mario lands on a planet where he must Ground Pound the three encircling tennis balls within the planet which will hit the Watermelon in the center and cause it to grow visibly larger until it shatters the glass planet and becomes the new planet.

Mario Hoops 3-on-3
In Mario Hoops 3-on-3, the Watermelon is one of the unlockable basketballs.