Ice watermelon

Super Blue Watermelons (also called an Ice Watermelon) are cold and frozen blue Watermelons (with blue skin, red flesh, and black seeds) found in Super Mario World 2: Yoshi's Island and its remake Yoshi's Island: Super Mario Advance 3. If a Yoshi eats it, he will be able to breathe three blasts of ice. The ice can freeze enemies solid, which can then be smashed to pieces.