Bullet Bill

The Bullet Bill is an item that debuts in Mario Kart DS and has appeared in every Mario Kart game since, just like the Blooper.It transforms the user into a large Bullet Bill that can knock over other players in its path. Usually, racers that are hit will lose all items in their possession.

Koopa Kart series
The Bullet Bill is an item featured in the Koopa Kart series starting from Koopa Kart DS, functioning the same as in Mario Kart. It can be obtained from 8th to 12th place in Koopa Kart DS and Koopa Kart 7 and 11th to 16th place in Koopa Kart Wii and Koopa Kart 8.