Luckily for us, Nintendo hasn't dropped the difficulty one bit, a most welcome announcement.
"If you think the folks at Nintendo have gone soft with their brain-training, puppy petting, and fitness games, they have something for you: a punch in the gut. The classic Punch-Out!! series is finally ready to go another round, this time on Wii, and the new version is every bit as awsome and brain bashingly difficult as its predecessors. Trust us; by the time you reach the last few opponents you'll be begging for some cuddly puppy time"