The popular Hamtaro anime TV show has inspired several adorable adventure games for handheld platforms, but in HI! HAMTARO: HAM-HAM CHALLENGE, Hamtaro and his gaggle of hamster friends are featured in a brain-training game designed to help younger kids practice skills like rhythm, shape-recognition, counting and meaning.
From Hamtaro's cage (where you can make him drink water, gnaw on a wooden carrot, and other super-cute activities), players venture out into the Square to interact with various hams including Oxnard, Maxwell, and Cappy in 12 different skill-building mini-games. Examples include using the stylus to touch the hamsters at the right time to make them jump, arranging different-shaped blocks so that they fit the given outline, counting how many objects appear on a blackboard, coloring pictures with the same hues shown in the example, counting money to pay the exact amount requested, and replying to Oxnard's request for food by choosing the item that matches his description.