Welcome to the Agency, You have been chosen to be a part of one of our most important investigation. Several scientists at Venntech disappeared these past few weeks, they were working on top-secret experiments and we don't know what happened to them or what they were working on. For this purpose, we've sent you a brand new hacking device: the SD90. Use it to decode messages they were exchanging before they vanished. As this task is crucial for the Agency, you and other agents will be competiting for the position of worldwide best agent. Good luck! - Innovative MATH PUZZLE, very ADDICTIVE with a lot of replay value. - DECODE the messages and discover the MYSTERIES around the Venntech company and its borderline scientific experiments. - The SD90 is a brand new DEVICE in your hands, complete with his user's manual. Learn to use it and to master it! - Decode messages by using operators on DECIMAL and HEXADECIMAL numbers. Hexadecimal numbers is an exclusivity in the world of mathematical games on mobile, this game will allow you to think differently and to learn how to do calculations more easily in that numeric system. - Worldwide LEADERBOARDS and ACHIEVEMENTS with the Google Play Games service. - MORE servers will be available soon. The perfect game for brainiacs, easy to play but still a great challenge.