There's a lot of issues with this game, and since these issues have been reported in various reviews I've read, it becomes clear that the developers don't really care about the game, just the money it has the potential to bring. It seems like that's most mobile games nowadays though. Starting cash is completely useless, especially in later levels. They also keep your upgrades locked until later levels even if you bought them. That's absolutely pathetic. So much potential, ruined by ignorance.