Defunct Games reviews Zenodyne R, available now on Steam. Despite good intentions, Zenodyne R fails to capture the shoot-em-up magic of the 1990s. The gameplay and level designs are fine (if not a bit basic), but the whole thing is sunk by an onerous unlock system that forces players to grind the same few levels for hours on end. It's a shame, because without this mechanic, Zenodyne R would have been an easy shooter to recommend.