Oniken does a few things right, but flounders when it comes to the most important parts of the experience. The visuals and audio of the game are a faithful and accurate tribute to the style of classic NES action games, sure. All of the artistic flair in the world can't help a game that simply isn't fun to play, though. Action in Oniken is consistently stiff and frustrating, and while boss encounters can provide brief moments of gratifying gameplay, only the most dedicated of action platformer fans will have the patience to reach those encounters.