Monster in the City

Professor Proof has made an incredible discovery. Our city is teeming with tiny, invisible monsters! They're everywhere, but invisible to the human eye. With his specially designed monster machine, the Professor can make them visible. But then the unthinkable happens: an experiment goes wrong and the Professor disappears without a trace. Now it's up to you to continue his research and rescue him! Can you track down the monsters, solve the puzzles and free the Professor? Gather your team—only the best little monster researchers can master this mission!