Bomberman II follows the popular Famicom/NES game Bomberman, incorporating a number of new features to the series. The game maintained the classic Bomberman game-type, requiring the player to navigate a maze of blocks using bombs to make a path. It added a two-player and three-player mode, and had a more developed storyline. The game was developed by Hudson Soft and released on the Family Computer and the NES. It was marketed as Dynablaster in Europe.

The player controls White Bomberman, who is framed for the terrible crimes committed by Black Bomberman. After being accused of robbing a bank, White Bomberman is thrown in jail. The player must navigate White Bomberman through a series of puzzles to escape his prison cell and bring Black Bomberman to justice.