Memory Challenge Simon is an improved version of the classic game "Simon Says". The game is simple, yet fun and challenging, and requires you to press the buttons in the correct order as long as you can. It is available for Android platform and is free to download.

The game offers three different modes - Classic, Reverse, and Speed. In the Classic mode, you have to follow the sequence and press the buttons in the correct order. In the Reverse mode, you must follow the sequence in reverse order. And in the Speed mode, you have to press the buttons in the correct order as fast as you can to earn more points. The game keeps track of your records, allowing you to check and try to improve them.

Overall, Memory Challenge Simon is a great game to test your memory and reflexes. It is easy to play, has simple yet engaging gameplay, and is perfect for a quick break during your day.