The phrase "a blue shell" is correct and usable in written English.
It can be used in contexts related to gaming, particularly in reference to the item from the Mario Kart series that targets the player in first place.
Example: "Just when I thought I was going to win the race, someone hit me with a blue shell."
Alternatives: "a blue item" or "a blue power-up".
And while he's played the hero many times by rescuing Princess Peach, he's clearly got a dark side – as anyone who's been on the wrong end of a blue shell in a Mario Kart game can tell you.
"The Super Horn, which emits a defensive shock wave and can be used to fend off even a blue shell; the Piranha Plant, which is held in the character's hand and bites down nearby rivals and items; and the Boomerang, which can be hurled three times to send a rival into a spin".
If you fired a blue shell: push-ups.
As another example, red Yoshi will be able to fly when it holds a blue shell, and then will spit fire when it releases that shell.
The default Yoshi is green, and will sprout wings (which allow him to fly when the user repeatedly presses "A") if in its mouth there is a blue shell.
This is a failsafe way of escaping a Blue Shell.
He was possibly carrying a blue shell-type jacket, baseball cap or floppy hat and boots.
He might have been carrying a blue, shell-type jacket; baseball cap or floppy hat; and boots.
The subjects were presented with three containers in total, two of which were identical cups and one of which was a sand mould (i.e. two green cups and a blue shell-shaped sand mould, two green cups and a red turtle-shaped sand mould, or two blue cups and a red turtle-shaped sand mould).
It's not only fun because it allows people to highlight fiery devastation in slow-motion and black and white, but because it connects to our inner conspiracy theorist, certain that the source of our problems from a sneaky blue shell in Mario Kart to an inconstant fiancé is the work of a shadowy figure pulling all the strings.
It's not only fun because it allows people to highlight fiery devastation in slow-motion and black and white, but because it connects to our inner conspiracy theorist, certain that the source of our problems from a sneaky blue shell in Mario Kart to an inconstant fiancé fiance is the work of a shadowy figure pulling all the strings.
