Hello,
I have some idea,cuz i saw some players in Slovak square, who ask about this. If u want make level BOSS, yout must have done at least 3 investments. For example, player start playing day 80, and he make level Consg. day 100, what he can do? Maybe, u can add for all with level CONSG. investment in bank. If player will make 3 invest or if player have 3 investments, investors will be hiden for him. With this players have chance make level BOSS and more, when they start playing later.
Sorry for bad en.
Greet from Slovak.