well, if I understood correctly, you want to know how to make programs for JJ2. It's not that simple as you think it is. First of all, you need to know to write codes. You can choose which code language you want to use in coding. There are too much code languages so I can't tell you every of them. You can code in Visual Basic 2005. I use it, but I am not very good in programming . Next thing what you need to know if you wanna make tools/cheatz/anything other for JJ2 are addresses for things in JJ2 what you wanna "edit". But as I can see, we're far far away from making tools for JJ2 . 1) Because too much of them are made already; and 2) We're not that good in coding.