Critter Round-Up is an action puzzle game in which players try to corral different herds of animals by building fences as quickly as possible. The gameplay is similar to that of the freeware title Jezzball, but instead of avoiding ricocheting balls, players must construct borders around constantly moving critters. There are more than 50 different levels, spread throughout disparate locations like the Outback and the Arctic, and players can go it alone or join a friend in Adventure Mode. Further multiplayer modes include four-player mini-games, Co-Op Challenge, and Marathon Mode. ~ Christopher Brown, All Game Guide