The Ninja Gaiden idea sounds cool. There should be one for calcs.
Sadly I tend to not have inspiration on command/request for music, though, so I doubt I would be able to help much. My inspiration comes all of a suddent then vanish. My last song was in May.
I have Ninja Gaiden on my computer through a NES emulator. That's where I got the idea.
As for music. that's too bad. :'( Your music is amazing.
On a different note, here's the basic story to the game.
An asteroid hits in a forest. It's carrying a virus that infects the local wild life causing forced evolution on their offspring. You start the game in the early years of Daemons (I think it's a nice approach as Pokemon just plops you down in a world where they've always existed). You are an employee of Paradiso Corp. (Evil group)
You are given your first assignment and your starter Daemon. (In this game, you get this one mandatory and your choice of three comes later) You fail the mission and are ordered to kill the Daemon (Paradiso Corp only allows the strongest of Pokemon). You refuse and ultimately leave the company. Well you return home only to find that your fiancée has been taken by Paradiso. The rest of the game is devoted to finding and saving her.
I've got something special for the end and I don't want to ruin it.
The battle system will also be different. You know how you could only have one Pokemon out at a time? (save double battles) Well in this game it will be four-on-four. Three Daemons, and you, the trainer (Yes you can fight in this game). The Daemons surround and protect you. If the trainer is KO'd then they lose the match. Only the trainer can use items. Also you can have up to 9 Daemons in your party.