Earth is under attack. Not from the skies but from beneath the depths of the Pacific Ocean. As gigantic inter dimensional monsters emerge from the seas and threaten life as we know it the US takes matters into its own hands and builds mammoth combat robots to even the score a little. Released earlier this month Pacific Rim has been cementing itself as a sure fire summer blockbuster smash hit ever since racking up over $70 million already. The battling mech/monster format has proved incredibly popular throughout the history of science fiction, video games and comic books for decades and we finally have the balls to the wall action opus we've been crying out for. But as good as the robots in Pacific Rim are how would they fare against other opponents? Here at What Culture we've been thinking of 5 other contenders that might just be able to kick robotic arse if faced with the awe inspiring Jaeger robots. Would the US battle bots stand tall once again or would they be defeated in a quick first round knock out. Well there's only one way to find out. Read on and let us know your thoughts in the comments section below. But first, here's the trailer to whet your appetite: