Onken Introduces users from a ninja named Zab. This is one of the remaining resistance soldiers. Almost all of his allies were destroyed by cybernetic fighters belonging to a military organization who seized control over the destroyed world and the remnants of mankind. Hample onyen consists of 6 levels, divided into 3 smaller episodes. During the battles, the gamer may not hide, but to attack the forehead, destroying the opponents with the help of a deadly blade.

At each stage, the protagonist lies in wait for the horde of ordinary opponents and the boss. The appearance of enemies varies. Some of the Cybermonsters have not even completely lost their human appearance. In addition to cold weapons, the hero will also be able to use grenades. According to locations, the character moves on a scooter. In one of the levels, he will have to transfer to the train to destroy the enemies present there. In between dynamic fights, KAT scenes are reproduced where the plot is revealed.

Different objects are scattered on locations. There are both medicines and artifacts that allow the character to go into the state of the berserker. If the user ended with life, then he will have to start from the very first episode in the level, regardless of the place in which he died. Fans of challenging Title offers 2 additional modes: hardcore, where Gamer has only 1 life, and boss-mode.