I can play several FF songs on piano. I don't try to copy all the same background chords and patterns or repeat the versions on Piano Collections. Instead, I mostly focus on playing the melody and improvising with the accompaniment. My computer also has a midi keyboard and a program for playing it, but you can also play with your normal keyboard. ASDFGHJ make up CDEFGAH, and WETYU make C#D#F#G#A# notes. I can play Suteki Da Ne with these ASDFGHJ, though since you can only play one octave at a time, there won't be too much accompaniment.

The first FF songs I learned to play on piano were Aerith's theme and Interrupted by Fireworks. I only have the sheet music for very few FF songs, unfortunately, so I'll have to play most of the songs by ear. Dancing Mad is hard on piano, but I think it would sound quite good if anyone could play it.