Bombshell Koopa

Bombshell Koopas are a black-shelled sub-species of the Koopa Troopas found in the game Super Mario Land. Bombshell Koopas explode shortly after being stomped and are immune to Superballs. They have bombs as shells, implying that they may be related to Bob-ombs. Luckily, the blast radius was not very large. They replace Koopa Troopas in Super Mario Land, as it would've taken longer to program the ricochet effects of Koopa shells on the Game Boy.

Bombshell Koopas are the most common enemy in the game, appearing in all levels except for 2-3 (the underwater level), and 4-3 (the flying level). They move like Red Koopa Troopas as well. Bombshell Koopas resemble ordinary Koopa Troopas with a black shell. The Black Shells from Mario Kart Arcade GP are possibly Bombshell Koopa shells.

In Super Mario Land 2: 6 Golden Coins, Koopa Troopas return as regular enemies, but also a different type of possible Nokobon is featured. In this game, they are called Noko Bombettes.