Zoo Keeper review. Classic Game Room presents a CGR Undertow review of Zoo Keeper for Nintendo DS developed by Success and published by Ignition. Zoo Keeper - formerly known as Zooo on the GBA and PS2 - finds its natural home on the DS, with touchscreen input that allows the closest approximation to its flash-based, point-and-click roots. By connecting lines of animal icons, the Zoo Keeper adds to his totals for the stage, and by fulfilling his quota of every species, can advance to the next level, with higher point values, the occasional rabbit, and a faster timer to increase the pressure. This video review features video gameplay footage of Zoo Keeper for Nintendo DS and audio commentary from Classic Game Room's TJ.