This sequel to the 1988 Nintendo Entertainment System (NES) original is testament to Capcom's and developer Grin's well-trained eye for delivering superb fan service. While it is a slick, highly-accomplished title in its own right, its painfully steep learning curve may put some players off. Original hero Nathan ‘RAD' Spencer returns after spending several years imprisoned by the military group he served under during the first game. Now, reunited with his bionic arm, Spencer is set free to bring down the ruthless terrorist organisation BioReign.