Mouldering green pig heads aren't typically appetizing, but these Angry Birds cakes don't look half bad.

Rio, the computer animated avian comedy, is certainly a good enough excuse for more Angry Birds. To wit, Angry Birds publisher Rovio has released Angry Birds Rio for iPhone, iPad and Android, a game that's a surprisingly capable improvement on the original.

Rovio Mobile confirmed over its official Twitter account that all versions of Angry Birds will be brought to the Nintendo 3DS within the year.

Angry Birds Rio isn't the movie we'd been hearing about - it's a crossover with a movie, delivering another 45 levels to Angry Birders in two months, says the game's maker. The pigs don't figure to appear.