Ok I just stumbled with something funny... I was replaying RCRU and just finished the game... I was back in class and left the room... I decided to pick a fight with a jock I was with really low healt and a had a bit of will power... that jock made the throw attack where he lauches you like a ball... I was knocked out and my character (I was playing as Chris) was on her knees trying to get up when all of a sudden an Old Coach like Mickey from the Rocky movies popped up on the right corner telling me to get up, just like the Toasty dude from Mortal Kombat! It was so quick that I couldn't take a screen shot!! Have anybody else also triggered that animation??

While I was writing this topic, I sent a message to one of the devs about this finding and he cofirmed sending me a pic of the Coach and said it has 1% of chance for him to pop up while your character is consuming willpower...