Playing the WII with my little brother was so frustrating...he would beat me in boxing and tennis and I would be so mad I'd keep asking for another round haha
I know the feeling, my little nephew used to beat me at Mortal Kombat constantly just by button smashing. How did your little brother get so good at Wii?
Well it turned out we were both too close to the sensor and he was like 5 so it read his movements better haha
Ahhh! Well at least you found out it was just user error and not that he was actually better than you!