What form of play does Ouk-Khmer and Sentinels of the Multiverse have in common?
Ouk-Khmer (Hill's version) Ouk-Khmer (also known as Cambodian Chess) is a chess variant which D. B. Pritchard claimed was played in Cambodia although its actual origins appear to be unknown. Pritchard gives the source as P. A. Hill. It combines elements of makruk and xiangqi. Similar to xiangqi, it is played on the intersections of an 8×8 monotone board (Instead of 8x9). Contrary to Pritchard's claim, the actual variety of chess played in Cambodia today, known as "Ok" or "Ouk Chatrang" is nearly identical to Makruk. The authenticity of the game described by Pritchard remains doubtful.
Qwak! Qwak! is a single-player duck hunting light gun shooter arcade game developed by Atari, Inc. and released in November 1974. In the game, ducks fly one at a time across the screen, and the player shoots at them using a light gun attached to the game cabinet. The player gets three shots per duck; ducks change direction away from missed shots and fall to the bottom of the screen when hit. A screen overlay adds images of reeds and a tree branch, and an image of a duck is added to a row at the top of the screen whenever a duck is hit. Games continue until a time limit, set by the machine operator, is reached.