Acquired taste. The dictionary definition is "an appreciation that is unlikely to be enjoyed by a person who has not had a substantial exposure to it." That term describes the new Bionic Commando game for the Xbox 360 (also available for the PlayStation 3 and Windows PC) pretty well too.
Capcom's Bionic Commando series has always had a reputation for challenging gameplay. So it's no surprise that the new game has a steep learning curve in the beginning.
7/10