He plays classical music and is known as Video Game Pianist.
He is the first pianist to gain worldwide recognition for playing video game music on the piano, both in concert venues and in online videos.
Unlike many recognized musicians, Leung's breakthrough occurred almost entirely online when, on 2 July 2004, a video of him playing the Super Mario Bros.
theme blindfolded debuted on eBaum's World and later appeared on numerous viral video websites.
Leung makes YouTube videos, and as of 14 December 2015, has over 66,000 subscribers and 13.4 million total views.
Leung has been featured in The Plain Dealer, National Public Radio, Steinway & Sons – Owners' Magazine, Nintendo Power, Slashdot, GAME Magazine, CUBE Magazine, Night Life Montreal, MTV, 1UP.com, GameSpot, and Advanced Media Network.