Bob-omb

The Bob-omb is an item introduced in Mario Kart: Double Dash!!. It can be used to blow up other players on the track.

Koopa Kart series
The Bob-omb appears in every game in the Koopa Kart series starting from Koopa Kart: Double Trouble!!, serving the same role as in Mario Kart. It debuts in Koopa Kart: Double Trouble!! as Cackletta and Fawful's Special Item, and starting from Koopa Kart DS, it is a normal item. In Koopa Kart: Double Trouble!!, Koopa Kart DS, and Koopa Kart 7, it can be obtained from 2nd to 6th place, while in Koopa Kart Wii and Koopa Kart 8, it is obtainable from 3rd to 8th place.