This game had in a way somewhat similar approach to a shared view puzzle gaming as Bubble Bobble. Instead of defeating enemies, the goal is to fill in blocks while those enemies try to hamper all your efforts. Likewise you can collect helpful bonus items and you are on a per level time limit which is a bit more forgiving than the one in Bubble Bobble. The levels get progressively more difficult and beating the game was a challenge to share with a sibling, a relative or a childhood friend. Of course you can play solo too. This is one of my childhood favorites I'd like to immortalize.