aa 2 is a free strategy game developed by General Adaptive Apps Pty Ltd for Android devices. The game is the second version of their popular "hello world" app series for Android phones and tablets. The game is simple yet addictive, and its fundamental gameplay is similar to the classic "snake 2" game on old brick phones.

The game is handmade in Australia and is the authentic and original version of aa 2. The gameplay consists of placing small balls on a rotating circle without touching the existing balls. The game is easy to play, but as the levels progress, the difficulty increases, making it challenging and engaging for players of all ages. Overall, aa 2 is a fun and addictive game that is perfect for killing time and improving your strategy skills.