Angry Birds 2 has turned into a big hit. Rovio Entertainment announced the mobile game has been downloaded more than 20 million times in its first week of release.

The title is No. 1 on the iPhone and iPad in more than 100 countries. Fans have fired their slingshots more than 1.4 billion times and blasted their way through more than 300 million levels, Rovio said.

“When we were developing and testing Angry Birds 2, we had good reason to believe we were on to a good thing, but the enormous groundswell of enthusiasm for the game from loyal fans and casual newcomers alike has been humbling,” said Rovio creative director Patrick Liu in a statement. “It took the first Angry Birds game more than nine months to reach this many players, and we thank all our fans for growing the flock so quickly.”

The free-to-play game is currently No. 47 on the top-grossing games list, according to market researcher App Annie. If it moves up that chart, then Rovio will have some real money on its hands.

“While Angry Birds 2 is off to a great start around the world, including key markets in the Americas and Europe, in China we are gaining a new foothold and seeing remarkable fruits of our well-functioning partnership with Kunlun,“ said Rovio chief commercial officer Alex Lambeek in a statement. “A new generation of Chinese gamers are getting to know the angry feathered flock, and we see a bright future together with Kunlun, one of the Chinese game industry’s largest and most important players.”

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