And Then How Many There ?

People appeared from somewhere, will come or leave the house. Please answer the number of people remaining at home until the end. However, people may or may not come in the house. Or fall into a pit, or turned back. On the other hand, people appeared from the house, may or may not turn back to the house. Can you follow the their tricky movement without losing the concentration. The playable game is below. [Arcade] Starting from a very easy round, will become increasingly difficult. If you answer incorrectly is the end. [Challenge 5] Try 5 rounds which are highly difficulty. Are you able to answer correctly all round? --- Change Log --- *Version 1.4.5 - Update for new Google Play Policy. *Version 1.4.4 - Apply new Google Play Services. *Version 1.4.3 - Fixed exception on Android 2.2 (Froyo). *Version 1.4.2 - Apply new Google Play Services. *Version 1.4.1 - Fixed force termination at sound off. *Version 1.4 - Added sound. Change sound on/off by the "Menu"->"Settings". *Version 1.3 - Supported high-resolution terminal. - Added some animation patterns of the person. - Adjusted game difficulty. *Version 1.2 - Added choice method by one of five numbers to how to answer. Switch between choice method and direct input method by the "Menu"->"Settings". *Version 1.1 - Modified "Arcade" to save top record. - Modified "Challenge 5" to save the number of times the answer all correctly. *Version 1.0 - First release.