Atari has announced that Downstream Panic!, a tactical-action-puzzler for the PSP, has shipped to retailers across North America at the suggested retail price of $29.95. The fish-out-of-water adventure challenges gamers to play the role of a sea-creature preservationist out to save the world's fish after a stunning cyclone has blasted them into the Earth's atmosphere. Using a slate of more than eight types of innovative tools like fans, bombs, trees, harpoons and freezers, players must help their fishy friends to safety on their Earthbound descent.