I originally thought I would have two different styles of game play, the missile command style you see above, and a top town plane shooter. After putting the prototype together, I realized, the top down shooter is so similar that it doesn't feel like it adds enough to make it worth putting it in the game. Alot of the aspects of that style can be implemented in the missile command style anyways.
Another hurdle that I completely forgot, was what sound library to use. I really like FMOD, but as I plan on trying to get this published, I can't use(afford) that anymore. So do i try to get accustom with someone else library, or roll my own? Id rather not get into more engine development so I guess I'll have to start googling for a new sound library.
Something cool to check out, especially for all those that think GameMaker is just for beginners, This guy has a pretty interesting project going on. http://forums.tigsou...p?topic=18578.0