Mifune drinks hard, yells, and he is the coach of the losers.  His methods are ancient and he pushes the campers to the mental and physical limit.  But there may be a method to his madness.
If you're so tough, 
show us what you've got!
¡Hazlo si te atreves!
¡A ver si tienes huevos para hacerlo!
Se acha tão durão,
 então vem com tudo!