Get Zitzaki! is a mission in Grand Theft Auto 2 given to protagonist Claude Speed by Yakuza boss Johnny Zoo. The mission is available from the left of the two green Yakuza phones in Shiroto of the Downtown District.
The Zaibatsu Corporation have discovered the Yakuza's experiments with Doctor ZitZaki. Johnny sends Claude to pick up the Doctor from the hospital and bring him back to the Yakuza J-Lab.
The reward for completing the mission is $20,000.