The player's objective, as disciple of the Headmaster, is to recover the Orb of Celestial Harmony from disciple-turned-badguy Kaimen. To do that, the player must train its body and soul in the best tradition of Chinese warriors: to "walk the path of Moebius the Windwalker." The action takes place on the four Elemental planes of Earth, Water, Air and Fire, which the player must traverse in order to recover the Orb. Although gameplay is similar to standard RPGs, there are some differences: in addition to familiar character statistics such as dexterity, the players also has karma, a crucial attribute that goes up or down constantly depending on his deeds. Frighten a citizen with a sword, and the karma will drop; defeat monsters in battle, and it will rise. Combat is also played in a 2D side-scrolling view similar to fighting games, having a wide range of attacks to use, even including shurikens and fireballs if the character is experienced enough.
Source: Wikipedia, "Moebius: The Orb of Celestial Harmony", available under the CC-BY-SA License.