Megaforce's video for Is Tropical's The Greeks starts with what seems a harmless bunch of kids playing with toy guns, but soon becomes an ultraviolent bloody nightmare (courtesy of the animation team Seven), with splattering head wounds, slit throats, gang warfare, drug deals, terrorists...

Controversial, glorious, hilarious, upsetting... its already a bit of a phenomenon online and its only been out a few days. And after their new Charity Shop ad for Cadbury, Megaforce are hitting the big time - all guns blazing.