i played this game a little bit years ago, and just randomly thought about it today... After a little searching i found it, and sat in front of it until 5am getting every ending / achievement, including the unlisted ones...
I dont really understand what the game is even about, but Im not sure if im actually supposed to
I couldnt find any use of the piggy bank though, unless clicking it stops you from getting gray fox, but I dont think thats it..
Anyway, really good game, thought it was really cool if a bit inconclusive. Glad I happened to think of it today after these years. Looking forward to a sequel!