is there a way to download the games individually? the reason I'm asking is because my internet is incapable of downloading the full 2gb disc. but if I download them one by one its possible, the game I want to download as of now is Walk.

I do not believe there is a separate version of walk available yet no. some of the others do have separate versions but that's up to the developer.
Also I will be archiving this post as per what is explained here