 The critical and commercial successes of "Ninja Gaiden" have led CNET and GameSpot Asia to induct the game into their halls of fame.The "Ninja Gaiden" games gained a reputation throughout the gaming community for their difficulty and attention to detail.Although they appealed to gamers who, like Pro-G's Struan Robertson, wanted a "bloody hard, but also bloody good" challenge, it was feared that casual gamers would find the learning curve daunting.