Bridges are classified as a type of trap in some Bomberman games. They typically span three tile spaces and may run horizontally or vertically, separating two distinct sections of the map. Bridges are essentially safe zones in that monsters may not enter them, bombs may not be set on them, and explosions will stop short of them.
In some Bomberman games, a special Hard Block, such as a tree, must be blasted in order to create a bridge.
In Super Bomberman 2, bridges function in a completely different way than they do in later games. Bombs can be placed on them, and they can be destroyed with bomb blasts, creating an uncrossable gap between sections of the map, potentially creating an impossible stage clear scenario.