V1.01: works all good. mechanics worked all as I believe they were meant to. got most the achievements. still have 1 more achievements to get (s rank for rouge).
once the ring monitor has been purchased money and food isn't a real issue. enconomy could be raised the cost of things a lot when new items are added. 500 is only like 2 songs plus the ring monitor.
possible upgrade/purchaseables items:
increase to perfect range (ring, ribbon, tails device of some kind)