The Lego video games have become an institution famous for childish humour and a cartoonish representation of the characters and the worlds they inhabit, delivering some highly enjoyable entries for people of all ages. Series developer Traveller's Tales even managed to infuse humour into Batman and Superman's adventures, two heroes known for providing some of the darkest moments for comic book film audiences. Joss Whedon's take on the Avengers naturally lent itself to off-the-wall jokes, so you would think the developer has a winning combination on its hands - but the game adds little that's new to the films.