PERCHANG WORLD – Fun Physics Puzzles Across Unbelievable Worlds! Get ready for Perchang World, a thrilling evolution of the classic hit Perchang. The skill-based physics puzzler takes you to vibrant, dynamic worlds filled with incredible new challenges. Solve Ingenious Puzzles with Gadgets & Gizmos! Master the art of precision and timing as you guide balls from emitter to goal using a variety of interactive gizmos!