Rosie is a smasher from Maine, who mains Diddy Kong in Smash 4. Rosie is currently ranked 5th on the Maine Power Rankings and was originally a smasher from New York. He has won sets over Oatmeal, LeeT, Max Ketchum, Dazwa, Raffi-X, Tony Pajamas, Maverick, and Tsage.
Rosie notably showed a lot of dominance at the Smash by the Sea weekly tournaments, where he won around 20 consecutive tournaments. Because of this, there was a $50 bounty set up for any Maine player who could eliminate Rosie at a Maine tournament. The bounty was eventually claimed by Bronze.
Rosie was formerly an organizer for tournaments in New York, and is currently a tournament organizer for the Eight Count series.