Imagine a Mario Kart 8 game where there was only blue shells.

[Lonely_Dolphin]

Adameh said:
Actually, in the tourney options, I think you can actually set the powerups to be blue shells only. Praise Nintendo for thinking of everything!

It's shells only, not Blue Shells specifically. They shoulda just copied Smash Bros. item system where you can turn on or off each item.