Our friends at Loudwire, with some help from the Filthy Frackers, have put together a trailer for an old-school video game called 'The Big Four.'

The game isn't real, but in a perfect world, it would be. Then again, we probably wouldn't get any work done because we'd be playing it all day.

The 8-bit game features the "big four" of thrash: Metallica, Slayer, Megadeth and Anthrax. Clips from each of the band's famous videos make appearances throughout. See if you can spot them. (We'll give you a hint: That's Metallica's iconic 'One' that kicks things off.)

The 8-bit chiptune music also takes its inspiration from the groups. While the songs may not pack the butt-rattling oomph you're used to from the songs, they sure are fun. And who wouldn't want to hear Slayer's 'Raining Blood' done Super Mario style?

You can watch 'The Big Four' trailer above. If you like what you see, the Filthy Frackers have a ton of other cool clips, in all genres of music, that you can waste a day with here.

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