Bomb Sweeper

A dual-screen ("Multi Screen") game released in June 1987. Its product number is BD-62. The top screen is just "cosmetic", showing your boss sending you down the underground maze. You are John Solver, who needs to defuse bombs set by "Jack". In order to reach the bomb you have to move inside a maze. You can move walls (if they are not blocked by other walls) to create a path for you to move. After defusing a certain number of bombs, the game changes a bit (only on "Game A" mode): the maze starts moving from left to right and you have to be able to find an exit back to the surface (top screen). Differently from most Game & Watch games, your lost lives aren't reset when a player reaches 300 points.