I honestly love you game and i think some of the hidden parts are a bit hard to find if you dont know what you looking for but very well hidden i must say and i would reccomend this game because it is very entertaining and very immersing
They are not as hard to find as the easter eggs in any GTA but they are purposefully made for you to explore although in this new version (0.7) I have included a little help to make it easier to find the objects.