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.
I wonder how much of 
it is psychological.
Con esto veremos qué tanto 
ha cambiado su poder mental.
Vamos a comprobar bien su resistencia psicológica.
Quanto disso será que é psicológico?