Umbrella Adventures is a long, pleasant if not particularly original platformer featuring nice black-and-white hand-drawn animation. The story, if you can call it such, is that you are a gopher all of whose cakes have been stolen, and you must search through the forest to recover them.
You quickly gain an umbrella, which can be opened to protect yourself from aerial attacks, and other time gain additional powers. There's a strong puzzle-solving element, which is just as well, since the platforming element will challenge no experienced fan of the genre. The graphics are attractive, controls reasonably responsive, soundscape and music quite pleasant; and 'death' merely sends you back to the level beginning, so it's not a particularly frustrating game to play.
On the whole, good pleasant fun -- nothing startlingly original, but a nice little timewaster.