You can, although as you have seen the site is in aspx and doesn't have a lot of computing power so you might have to try and optimize it and tweak things a little bit.
Especially regarding variables, like score etc.
I didn't try making a single page game but that is probably possible.
You might be able to link other ressources from inside the site if you dont want to copy and paste your ressources at every page.
Well, all I'm gonna say is: Welcome to the site, and good effin' luck with the game.