Hot Springs Story Cheat Codes
Various late-/post-game unlockables.
Fast game-speed setting - Reach Year 16 Month 3 (i.e. "beat" the game once).
Large Baths - Get Rank 1 in every guide, invite Chimpan Z to your inn and get a "Pass".
VIP Room - Get 90 Popularity for every Target, invite Kairobot to your inn and get a "Pass".