Planet Undertow is the second planet in the Genesis version of the game Ristar. A planet which is covered with azure seas and oceans. There is so much water that the tides and water levels are regulated so the inhabitants can live safely in this aquatic world. That was until Ohsat appeared and blocked the valves to the regulator with corks! The tides became unpredictable, and the whole planet was flooded! Now it's a silent kingdom of submerged ruins and ocean wildlife. The planet is also known as Leatow. This planet is based around swimming and water hazards such as Turbines and Spiked Coral.