Well, you can either buy them from sites like Paletweb, or you can be a dirty pirate like the rest of us and get them from a website that hosts them as downloads (PM me if you want to know a good one-- for the sake of advertising and piracy I won't post it here). I personally have bought one of the games, but you'll be hard-pressed to find them most of the time, since Paletweb and Himeya are very often sold out of them.