Rovio is also expanding its brand to toys and playgrounds, and is taking the birds to the big screen.
Vesterbacka told the weekly the first full-motion animated movie featuring the characters was still 2-3 years away.
Earlier this year, Rovio raised $42 million from venture capital firms including Accel Partners, which previously backed Facebook and Baidu, and Skype founder Niklas Zennstroem's venture capital firm Atomico Ventures.
Rovio was founded in 2003 after three students including Niklas Hed -- CEO Mikael Hed's cousin and now Rovio's COO -- won a game-development competition sponsored by Finnish mobile phone maker Nokia Oyj and Hewlett-Packard CO.
($1 = 0.7694 euros)
(Additional reporting by Elzio Barreto in Hong Kong; Editing by Phil Berlowitz and David Cowell)