According to a report in Touch Arcade, the Swing Copters is similar to Flappy Bird in principle but instead of going to your right, you will be going up (or at latest trying to) in the new game. Nguyan has confirmed the release on his official Twitter account.
Unlike Flappy Bird, Swing Copters will be coming with an in-app purchase of $0.99 for removing the advertisements from the game, however the ads are unobtrusive and should not be an issue for most users.
While we wait for the release of the game, check out gameplay video from Touch Arcade below.
