Once upon a time there was a film called Yellow Submarine, considered a classical work of psychedelic animation. Also considered so thoroughly freakish that it has people (yours truly included) covering their eyes and ears every time they so much as get a whiff of it. If you're one of those traumatised souls, help yourself to a generous dose of Hero in the Ocean, a soothing, sort-of-physics puzzler starring a completely different yellow submarine. All you'll be doing is using the [arrow] or [WASD] keys to float around the deep blue sea, collect stars and pick up divers. It's much needed therapy.
Hero in the Ocean doesn't give you much by way of story, but don't let that stop you. What matters here is the atmosphere, which is very subtle and, at the same time, very lovely. It turns out you don't need much to create a feeling of quiet serenity: just some cool, shady ocean depths, swaying seaweed and sweet, tranquil music. The basic goal is to find a diver hidden somewhere in each mazelike level and find all three stars if you're so inclined, but you can also try to locate secret areas which hold trophies or, less often, a star. The puzzles go hand in hand with the ambiance, which means they are less than difficult, though still charming, and certainly varied enough to keep you intrigued. The game will occasionally throw a guided missile or a laser beam at you, just to keep you on your toes and change the tempo a little, but Hero in the Ocean is casual through and through – cute as a button, with perfect mechanics and interesting puzzles. And not an animated Beatle in sight.