Mario Driving Underwater is an online game at 43g.Com. You can play Mario Driving Underwater in your browser for free.This is a free online car puzzle game. Drag the pieces into right position by clicking. Multiple pieces can be choosed using Ctrl and Left Click. You can select a mode from easy, medium, hard and expert. But you will lose if time runs out! In any case you can disable the time, and play relaxed. Click Shuffle and start the game.