One Piece Chapter 30, page 5-6: GREAT!!!

Luffy notices the pirates are getting back up, saying, "AH! THEY'RE STILL ALIVE! THEY'RE PRETTY TOUGH!" Jango decides to take matters into his own hands to boost his crew's morale and strength. He pulls out his pendulum ring and tells his men, "LISTEN! WE DON'T HAVE TIME TO WASTE HERE! SINCE THE OPPONENT IS STRONG, WE MUST BE STRONGER... COME! LOOK AT MY PENDULUM. AFTER I SAY '1, 2, JANGO' YOU GUYS WILL BECOME STRONGER! YOUR WOUNDS WILL HEAL! AND YOU WILL BECOME MUCH STRONGER THAN BEFORE!!" Nami realizes what he is doing and warns, "IT MUST BE HYPNOTISM! HE'S TRYING TO MAKE THEM THINK THEY'RE STRONGER! THIS IS ABSURD!

Jango begins to swing his pendulum back and forth. The pirates stare at it, dazed. Jango counts, "ONE... TWO... JANGO!!!" tapping his chin. Instantly, the hypnotized Black Cat Pirates undergo a terrifying transformation. Their eyes bulge, their veins pop, and they let out a massive, roaring battle cry: "UWOOOOOOOOOOOOH!!!!" Nami, Zoro, Luffy, and Usopp watch in shock.