a web based game

I need a developer who can create a memory game for one of my clients. To play must register with facebook login, and share their results / scores on their facebook wall. [login to view URL] I just played memory, try to beat my record! Is it possible to "require" to like a facebook page before you play? It has recorded the best weekly score, the number of seconds a user to solve the game. There must register your score, to see how long you spent. At the same time, we want your feedback on what else one can have in this solution.