It's a psychological weapon... it's already got you on the defensive.
As Spazz said, hit it. It doesn't have block.
And since I understand your opponent is also new to the game knocking the deathroller over should pull the psychological advantage to your favour quite effectively. Take a chance, perhaps a few times, and you will knock it over.Try and get the deathroller in the direction of the sideline and then push him of.
Curious to hear how the advice worked against the Deathroller.