Is the Hatsune Miku: Project DIVA Future Tone bundle standalone?

I've wanted these rhythm games for ages now but they're hugely overpriced. They're finally on sale, but PSN lists them as an 'add-on'.

I thought it was just the two games put into one bundle? Sorry for the newbish question but the wording on PSN isn't very clear and I don't want to buy something that's useless without me having to buy another game to run it. Thanks.