Got the upgrade menu mostly done:

Also added some sounds for the shooting, made the art for the enemies (as seen earlier), and got some more of the background coding done.

Still to be done: - Finish creating the menus - Add more sounds, and hopefully music too - Implement wave system - Create a better background? - Many other small things that I can't be bothered listing :p

Yeah, I've still got a lot to do, but I have got a definite design now, so at least I won't need to spend any more time working that out...

Anyway, see ya all tomorrow!