Zwackery is a platform arcade game that had been released by Bally Midway in 1984; it was the first game to run on that company's then-new MCR-68 hardware (two Motorola 68000s running at 7.7238 and 8 MHz, with a DAC for sound). The player must use a 4-way joystick, a rotary controller and four buttons to take control of a wizard named Zachary "Zack" Thwacker who is on a mission to restore a frog princess (who, despite being female, looks like Mr. Toad from The Wind in the Willows), back to her human form (however, because this game does not have an ending, this is impossible) - and his medieval world is made up of several different screens that are traversed by going through doors on one side of the screen, and coming out of another one upon the other side.