In the live-action movie Super Mario Bros., a Bob-omb appears after Mario and Luigi escape the de-evolution chamber. As they are fleeing from Koopa's Goombas,
Luigi notices that some fungus appears to be offering them the explosive, but Mario drags him away before he can accept it. Later, after they leave the Boom Boom Bar, the fungus again offers them the Bob-omb. This time, Luigi manages to grab it before he and Mario escape.
Later, near the end of the film, while facing Koopa on the catwalk, Mario pulls out the Bob-omb, which causes mass amounts of panic amongst the city's inhabitants. Realizing the power the object possesses, he winds up the key and places it on the ground, but before it can get to Koopa, it falls through a crack in the ground. However, unbeknownst to both of them, the Bob-omb continues its journey after it falls. It walks through the lower section of the city (scaring off the inhabitants there), up a wall, and along the underside of the catwalk. As Mario and Luigi are blasting Koopa with Devolution Guns, the Bob-omb finally reaches Koopa and explodes right underneath him.
The appearance of the Bob-omb is similar to that in the games, though there are some differences. For instance, the wind-up key appears on the side rather than on its back, its eyes are smaller and more circular than their in-game appearances, and its feet have three toes on it. Additionally, the Bob-omb walks like a wind-up toy, and before the Bob-omb explodes from underneath Koopa, the Reebok brand name as well as the Union Jack (often used on their brand name products) can be seen on the underside of the feet.
Early concept artwork showed that the Bob-omb was going to have black arms and legs, white gloves, and white sneakers, while also having pupils on its eyes, and a mouth.