From Mario Kart. There is an infamous weapon pick up which is the blue shell. Upon using it, it will target the player in first place and only the that player. When the shell reaches the first player, it'll hover for a moment in front of the player before striking the ground in a huge explosion which will most likely cause the player to lose the first position. There are only a few methods to counter / negate it and they require skill and timing to pull off.