Same Uchi Game (Hit-the-Shark Game) for Pasopia is one of the most enjoyable action games by Hudson Soft for tthe first-gen Pasopia. Of course, you have to look out for the sharks, but you also have to monitor your oxygen level. The seaweed at the bottom of the ocean sways slightly, which is a surprisingly nice effect for the time, sort of the early signs of Hudson Soft's attention to detail to their games.