designing a game using flash/jave/c++

I want a game designed based on the one found here: [login to view URL] My main idea is a for a math game (I am a math teacher) that I can modify based on new lessons that I develop. Essentially I want the same game as the one in the link (or a variation of it as long as it is a maze with rooms that eventually lead to a treasure room, where a specific combination of password and code are required, the password being a specific word and the code a specific number that as the teacher I can later edit and change based on new topics I cover). I need the ability to change the questions in each of the rooms (or to rename the rooms) and for each question to be drawn from a random set of possible ones for that room (so if the player gets sent back to the entrance after missing 3 tries and goes back to the same room, the question is essentially the same but with different numbers in it). I also want the ability to change the pictures in the room to reflect new topics; and I want the game to be played on a browser of a laptop or tablet or phone. Please let me know if you are interested; it's a project I am working on as technology integration in my classroom. If a little animation can be added to the rooms to be make the quest more exciting, that would also be great.