Beardy Barrel is a mid-boss that appears in Double Drabobo.
He first appeared in Abobo's Big Adventure, so he has never been on the NES. However, he is a barrel, like the ones from Double Dragon.
In the game
He attacks Abobo with barrels and fire oils. And when he dies watch where Abobo is because he will explode.
Abobo will get the achievement "Ironic" if Abobo throws a barrel at him and take some damage, and the achievement "Beardy Basher" when he dies.
Abobo beat him before Beardy Barrel explodes.