Block-dropping puzzler Topple 2 has launched in the App Store.
The original game was downloaded more than 3 million times (read our review for Eurogamer's verdict).
The sequel introduces four new game modes including Upside-down, which inverts gravity, and Power Tower, where you must construct a power line using conductive blocks. Plus you can take on another player via wi-fi, or exchange ghosts to practice your skills.
Topple 2 is priced at USD 2.99 (around GBP 2 / EUR 2.30).