Hail to the King!

We're laying down a challenge of epic proportions. Gary from Hot Cross Games has just smashed Survival Mode in the game and seized the top spot on the Leaderboard with an in-game time of 6hrs, 53min and 6sec. Can you knock the game's undisputed King from his hill? Do you think you can beat this time! We don't.
And if you don't currently own a copy it's only $3.49 during the Steam Summer Sale!