yes I can confirm cheat engine works well... an other option is to use a virtual machine. There will be never a 100 % secure game. if there's really the will you can also modify the tcp packets... enough said I really can't find the sens to talk about. Simply transfer the the score to the server as any other game, and simply make sure that timing is correct linking to the server. all the the rest of work is not critical compared to what is the real goal of the application.