The Fantastic Game - Restricted Door Music 

Of all the songs on the Fantastic Game's music uploaded, I never saw this one.
This is actually a pitched down, slower, and reversed sample of Paula's theme from Earthbound.
I didn't take this from the game itself, I grabbed an ogg file of Paula's theme, and then experimented until I got the result that's similar enough. However in the game, it decreases in pitch over time, unlike the audio here. You're gonna have to do that yourself with audacity or something.