Nintendo has announced the early results of its mobile game release.

It’s impressive how quickly Super Mario Run overshadowed almost every released mobile title. The game was released on December 15th and in just four days it was downloaded more than 40 million times worldwide.

As a reminder: Super Mario Run is available only on iOS with Android version planned for 2017. A good summary is the fact that it’s the top-ranking free game on the App Store in 140 countries with its place in top 10 highest grossing games.

The game is free-to-play and there is only one microtransaction priced $9.99 for unlimited access to three of the game’s modes.