I gave into temptation again recently (seems to be happening a lot I'm afraid) and purchased a second Famicom game from 'Mandarake' a well known shop specializing in vintage toys, games and manga.
Who needs death and destruction when you can play a game about re-uniting penguins in love? You play the game by controlling one of two penguins, the other one mirroring your moves in reverse. The goal on each screen is to make the penguins meet each other either side of a heart at the top, whilst avoiding spiders and webs. These obstacles can be zapped by a beam each character possess (don't ask me why a penguin would own a laser beam) apart from flames that appear on later levels.
Overall, a recommendation for fans of the 'penguins in love trapped in mazes' genre.